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Old log cabin © Daniel Friedman at InspectApedia.com Building Framing & Sheathing Materials

  • POST a QUESTION or COMMENT about how to determine the age of building framing and sheathing materials, a step in determining the age of a building or of building components, systems, styles, and architectural design

How to determine the age of building framing or sheathing materials:

A Photo Guide to Types & Age of Framing Beams, Rafters, Studs, Lumber & Sheathing.

This article provides a photo guide to determining building age by examining its structure. We describe building framing materials used in different epochs of residential construction. Knowing when certain materials were first or last in common use can help determine the age of a building.

We list various kinds of building materials and give the history and dates of their first (and in some cases last) use in residential and light commercial construction.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

Framing & Construction Materials as Indicators of Building Age

Modern post and beam construction © Daniel Friedman at InspectApedia.com

The age of a building can be determined quite accurately by documentation, but when documents are not readily available, visual clues such as those available during a professional home inspection can still determine when a house was built. Our page top photo shows modern floor framing details for a modular-constructed house.

The observation of framing materials, framing markings, and framing styles provides considerable information about the probable age of a house. We discuss framing materials and styles here as an aid to house age determination.

Antique and modern trusses are distinguished and modern laminated beams and I-truss beams and wood joists are discussed.

Article Series Contents

At above left our photo illustrates a modern (21st century) post-and-beam construction using milled timbers but traditional mortise and tenon and treenail connectors.

Post and beam modern construction (C) Daniel Friedman at InspectApedia.com

Cement Board & Fiber Cement Building Products

Asbestos-Cement Board & Fiberboard Products

Exterior Siding & Roofing Using Asbestos Cement included asbestos cement shingles, asbestos cement siding, corrugated asbestos-cement roofing.

See ASBESTOS ROOF MATERIALS and ASBESTOS CEMENT SIDING

Other fiber cement materials used in construction included

Also see ASBESTOS IDENTIFICATION IN BUILDINGS and

see SIDING MATERIALS, Age, Types

Modern Cement Board & Fiber Cement Products

Cement board is a non-structural building sheathing material which in its contemporary form is made from Portland cement covered with a reinforced fiberglass mesh fabric.

Cement board is used as a tile backer or a backer board for stucco applications on buildings. Current producers include Custom Building Products (WonderBoard™) and US Gypsum (Durock™).

Panels made of a mixture of cement and wood fibers are produced for building siding by James Hardi (Hardi-panel and Cemplank™), and CertainTeed (Weatherboard™).

See details at SIDING, FIBER CEMENT IDENTIFICATION - cementious products

Also see FIBERBOARD SHEATHING IDENTIFICATION - plant-based or wood fibre products (for comparison)

(History & dates in process, contributions invited - CONTACT us)

History of Dimensional Lumber Used in Building Framing

Platform framing © Daniel Friedman at InspectApedia.com

Dimensional lumber that initially actually measured as equal to its nominal size (a 2x4 was actually 2" x 4") was produced beginning in 1833 in the U.S. (Augustine Taylor, building St. Mary's church in Chicago in that year) and was the dominant framing material in the U.S. by 1900.

Our photo (left) shows the interior of a modern platform-framed structure going up in Minneapolis, MN in 2008.

The appeal of dimensional lumber was the reduced time and effort to construct a wood frame building compared with hewn timber frame beams that had to be cut and shaped, air dried for two years, and joined with mortise and tenon joints that required more highly skilled carpenters.

Initially church members were concerned that their building was being built of flimsy too-small sticks and scaffolding materials.

But 2x4 and other dimensional lumber did not remain exactly the same physical size as its nominal size, and by 1940 or earlier the finished size of most framing lumber products was notably less than the nominal size. A modern 2x4 is approximately 1 1/2" x 3 1/2" in cross section.

What Lumber Species Were Most Common in Older North American Wood-Framed Structures?

The table given below is of general interest in understanding the most-widely-used framing lumber species in North America up to about 1985. However it is likely that especially in buildings constructed before 1900, lumber came from local mills and was milled from local tree species - a fact that will change the probable species of woods used in antique structures.

Most-Common Framing Lumber Wood Species in North America 1

Framing Lumber Wood Species To Early 1900's Framing Lumber Wood Species To Late 1900's
Red Cypress *#
Redwood *#
Douglas Fir-coastal #
Douglas Fir – inland *#
Pacific Coast Hemlock #
Western Larch *#
Eastern Hemlock *#
Eastern Spruce *#
California White Pine #
White Pine (Northern, Idaho, and sugar) #
Norway Pine #
Port Orford Ceda r#
White Fir *#
Tamarack *#
Long leaf Southern Pine #
Short Leaf Southern Pine #
North Carolina Pine #
Arkansas Soft Pine #
Southern Yellow Pine #

Douglas Fir

Hem-Fir - Hemlock / Fir

Southern Yellow Pine - also referred to as

SYP

Spruce-Pine-Fir - also referred to as SPF

Southern Pine

Notes to the table above

Audel’s mentions White Pine as the most common framing lumber on the East Coast in the early 1900s,

which is also confirmed by similar references in the Sears catalogues.

* Species reported as being appropriate for studs (No. 1 or No. 2 grade recommended)

# Species reported as being appropriate for joists and girders (No. 1 grade recommended)

For help with visual identification of wood species I particularly like

Is Modern 2x Pine Lumber as Strong as Antique 2x Pine Lumber?

Broken rafter © Daniel Friedman at InspectApedia.com

Our opinion is that modern dimensional lumber is not the same product as it was in 1833 or even 1940. Modern 2x lumber is produced from trees that have been developed to grow rapidly to a size at which they can be harvested.

Rapid tree growth means wide-spaced growth rings which may mean softer, weaker wood than dense-grained first-cut timbers or lumber.

That combined with the increasing number of knots (as 2x's are cut from ever smaller trees) means that the building frame must rely on additional materials (such as plywood or OSB sheathing) for a critical part of its strength.

Details about the evolution of lumber standards are

at FRAMING AGE, SIZE, SPACING, TYPES.

Also see FRAMING TABLES, SPANS.

Where lumber strength vs. size, weight, or bending resistance is a particular design concern, architects and engineers may specify an engineered wood product such as a laminate-beam or wooden I-trusses or trusses where that strength is needed.

Other framing material & hardware details can assist in determining building age. An examination of nails and fasteners and other building hardware is a complimentary effort useful in determining the age of a building and its components.

See details at NAILS, AGE & HISTORY

as well as SAW & AXE CUTS, TOOL MARKS, AGE for additional building age clues likely to be available when examining building framing materials.

Engineered Wood Product Building Construction Materials History & Dates

Laminated beams © Daniel Friedman at InspectApedia.com

Our photo (above left) shows a modern laminated wood structural beam in both side and end view. (Make sure that your builder uses proper connectors and supporting posts, not the goofy structural setup in our photo).

Our photo of I-joists below shows this engineered floor support system in use in a Minneapolis home under construction in 2008.

I_Joist floor support © Daniel Friedman at InspectApedia.com

Fiberboard Building Sheathing: Black board, grayboard, buffaloboard exterior sheathing

Fiberboard sheathing © Daniel Friedman at InspectApedia.com

In addition to plywood, OSB, and gypsum board, impregnated fiberboard has been used as exterior building insulating sheathing in North America since at least 1909.

Fiberboard wall sheathing, when intended for use on a building exterior is installed by nailing directly to the wall studs, most often with let-in diagonal bracing or plywood panel bracing at the building corners to assure building rigidity.

There both non-structural and structural fiberboard panels that did not require this additional bracing have been produced.

Some fiberboard sheathing products can claim adequate structural shear strength, particularly if the proper nails and nail pattern are used.

Other contemporary producers of fiberboard building sheathing include International Bildrite (Bildrite structural), Georgia Pacific (Stedi-R & Stedi-R-structural), Knight Celotex (Celotex premium insulating), and Temple Inland (Temple fiber brace).

Fiberboard sheathing, also called black board, gray board, or buffalo board sheathing in some areas, is a fibrous material impregnated with a stabilizer and water repellant - asphalt on early versions of this material that we have found.

While it's not easy to find and identify this material on a building wall unless indoor or outdoor demolition is being performed, you can spot the product in building attics on the gable-end walls.

The R-value of fiberboard sheathing is higher than plywood, gypsum board, etc, and is rated at about R 2.4 per inch (or about R 1.2 in more typical half-inch thickness with which it is applied. The board also reduces sound transmission into buildings.

Details about fiberboard sheathing products including Celotex & Homasote & Masonite are found

at FIBERBOARD SHEATHING (separate article)

and HARDBOARD MASONITE™ & OTHER BRANDS™ (in this article).

Gypsum board building exterior wall sheathing

Gypsum board wall sheathing © Daniel Friedman at InspectApedia.com

[Click to enlarge any image]

Gypsum board has been used for non-structural wall sheathing and even roof sheathing on buildings for more than 50 years in North America alone.

Above is a row of 1940's buildings constructed at Stewart Air Force Base in Newburgh, New York, apparently as military housing. Some of these structures are still in use while others (foreground) are being demolished.

Originally a brick veneer covered the structure, behind which was this black paper-covered gypsum board sheathing.

An ongoing demolition project ca 2012-2014 has removed the brick veneer from several of these buildings, leaving the gypsum-board sheathing exposed to the weather.

Details about moisture-resistant gypsum panels or gyproc are

at SHEATHING, GYPSUM BOARD

Hewn Beams & Pit-Sawn Planks as Construction Materials - Help in Determining Building Age

Hand hewn beam © Daniel Friedman at InspectApedia.com

Above: hand hewn beams, chopped and then sized with an adze and axe were used in North America from the 1600's into the late 1800's.

Timber frame construction initially used hand hewn beams, cut roughly rectangular by an adze and axe.

Details about chopped or hewn timbers and beams are

at AXE ADZ HEWN BEAMS & PLANKS

Roof framing 1790 © Daniel Friedman at InspectApedia.com

Our photo at above left shows typical roof framing on a Poughkeepsie home built ca 1790.

See SCRIBE & SQUARE RULE MARKS on TIMBERS for details abou thow these marks were used.

Pit saw kerf marks indicate age of a framing timber © Daniel Friedman at InspectApedia.com

Our photo-left, shows a hand-sawn pit-saw cut beam or plank.

For details about post and beam construction methods see our full text article

at POST & BEAM CONSTRUCTION

By 1650 a typical timber frame building used multiple bents and girt beams, may have been more than one story tall, and included an exterior made of horsehair-reinforced cement stuccoed over hand-split lath. Timber framing in North America continued until about 1920. (CF Reference due: Age of Barns, op. cit.)

 

Research citations on hewing timbers and on early use of the adz or adze:

Identifying Photographs of Homasote®, Celotex®, & Similar Fiberboard & Insulating Sheathing Board Products

Fiberboard sheathing like Homasote © Daniel Friedman at InspectApedia.com

Insulating building sheathing made by Homasote® is produced by the Homasote Company, a manufacturer in the U.S. in New Jersey, and similar fiber sheathing products have been used both as a sound barrier and for exterior sheathing on buildings. Insulating board sheathing has been widely used on building exterior walls, under roofs, and against masonry foundations in finished basements.

Originally, Homasote produced sanded "agasote" sheets used in the roofs of passenger railroad cars, moving, in 1915, to automobile roofs, and in 1916 to construction products. Homasote was widely used for military barracks in both WWI and WWII and is still promoted for sound resistant sheathing and other applications.

Homasote and similar insulating building sheathing board products are still sold as a lower cost alternative to plywood or OSB for building sheathing. The product is used as structural paneling, insulation, concrete pouring forms, and expansion joints.

Homasote type insulating sheathing board © Daniel Friedman at InspectApedia.com Homasote type insulating sheathing board © Daniel Friedman at InspectApedia.com

Our photos (above left and right) show close ups of Homasote-type insulating building sheathing board products, including a torn cross section showing the layered fibrous character of this material. Where structural shear strength is needed by using the company's recommended ring-shanked nails in a specified nailing pattern.

Homasote Co., the oldest manufacturer of building products from recycled materials in the United States, was founded by Eugenius Harvey Outerbridge as Agasote Millboard Company, and has been producing this material since 1909. In 1936 the company changed its name to its best known product, Homasote.

Our photographs below show Celotex® insulating board with an older Celotex fiberboard building sheathing board at left and a more recent Celotex insulating board product shown at below-right.

Also see this close up of an older Celotex insulating sheathing board product.

Celotex old insulating board © Daniel Friedman at InspectApedia.com Celotex tuff-R insulating board © Daniel Friedman at InspectApedia.com

Details about fiberboard sheathing products are

at FIBERBOARD SHEATHING (separate article)

Also see FIBEBOARD insulating sheathing or board sheathing products discussed here (above) and see MASONITE® hardboard siding products also discussed in this article.

Log Home Construction Materials

Elk Lake Michigan Log Cabin © Daniel Friedman at InspectApedia.com

Our photo above shows traditional hand hewn logs and a log joint on a Norwegian cabin outside of Oslo. [Click to enlarge any image]

Antique Log Home Construction

(1640 - est U.S.): solid logs usually felled and prepared at or close to the building site, set on ground level, on flat stones on ground, or on a stone foundation, corners joined using various notch and overlap methods.

Below: logs used as widely-spaced rafters in a home built in 1865 and photographed by Rockland County NY home inspector Dobver Kahn.

Log rafters in an 1865 ranch inspected by home inspector Dobver Kahn (C) InspectApedia.com 2018

In our OPINION these log rafters do not provide framing to modern structural standards. Their actual structural evaluation, even by a licensed professional, is difficult as the logs are not a standard building material in dimension nor in consistency.

Log rafters in an 1865 ranch inspected by home inspector Dobver Kahn (C) InspectApedia.com 2018

An experienced inspector observing log roof support framing like this will report evidence of insect damage, rot, sagging, separation of structural connections, and even where these are not observed he or she will cite non-standard framing that might need additional investigation or support.

Details about log home construction for antique, historic, old or traditional log cabins are discussed in these articles:

Modern Pre-Cut Log Home Construction

Modern log construction © Daniel Friedman at InspectApedia.com

Typical modern log homes use 6" or larger diameter factory milled logs that are cut to precise dimensions and whose design includes interlocking splines and gaskets to protect against leakage. In our photo (left) you can see the notches on the log bottoms and the log-end profile shows the raised splines on the top of each log.

See HOME BUYERS/OWNERS GUIDE TO LOG HOMES for complete details about log home types, construction methods, inspection procedures, common defects.

See SLAB LOG CABIN SIDING for a description of conventionally framed homes with a log-exterior.

Also see LOG HOME CONSTRUCTION for a brief description of this construction method.

Our complete list of log-home information, inspection, diagnosis, repair, construction, articles is at LOG HOME GUIDE

Masonite™ and other Hardboard

Masonite hardboard © Daniel Friedman at InspectApedia.com"Hardboard", of which Masonite™ is a familiar brand, is a high-density fiberboard made from highly-compressed wood fibers bonded together in either a wet or a "dry" process to produce hard wood panels, brown in color, of varying thicknesses, depending on the end-product required.

Photo: Antique S1S wet-process Masonite™ hardboard. [Click to enlarge any image].

(History & dates and more examples of Masonite™ and other hardboard products are in process, contributions invited)

Details about Masonite™ and other hardboard brands are

at HARDBOARD MASONITE™ & OTHER BRANDS

and at HARDBOARD Masonite™-like INGREDIENTS

Also see

OSB - Oriented Strand Board Roof and Wall Sheathing Materials

OSB Oriented strand board roof sheathing © Daniel Friedman at InspectApedia.com

Details about the properties of OSB are at SHEATHING, OSB

Also see DEFINITIONS of ENGINEERED WOOD OSB LVL etc. Excerpts are below.

Our photo (left) shows oriented strand roof decking (OSB) from the attic side, in new construction. Developed in the 1980's, oriented strand board is an engineered wood product in which strands and flakes of wood are cut from straight, low-knot small-diameter logs, usually aspen or white birch.

What is the difference between waferboard and OSB?

OSB is a modern wood product that developed from earlier 1970's "waferboard" product. In 1990 the Structural Board Association was formed. By 1996 there were 38 OSB producers in North America.

Unlike waferboard whose composite wood chips were place randomly, an oriented strand board product is made from wood chips that are deliberately oriented with respect to one another to provide greater strength.

See SHEATHING, OSB for more details and photo examples of OSB Oriented Strand Board sheathing use.

CONTACT us to contribute photographs of waferboard or OSB.

Plywood Sheathing on Walls & Roofs: Use in Building Construction, History, Description, Identification

Fire retardant plywood and OSB roof sheathing © Daniel Friedman at InspectApedia.com

Details about plywood building materials are at PLYWOOD Roof, Wall, Floor Decks & Sheathing.

Also see MDO Plywood

and HDO Plywood

at DEFINITIONS of ENGINEERED WOOD OSB LVL etc. Excerpts are below.

PLYWOOD Roof, Wall, Floor Decks & Sheathing (1905 - present as a construction material in North America) is sheet material made of thin veneers of wood that are laid with wood grains in alternating direction, glued, heated, and pressed together.

Our photo (left) shows both fire-retardant plywood roof sheathing (left half of the photo and center top and bottom) and OSB roof sheathing (center of photo and right edges of photo).

While modern plywood products use a variety of glues, heat, and pressure to produce the product, plywood has been around at least since 3500 BC when a glued-veneer version was produced in Egypt.

The rotary lathe (ca 1850) made modern plywood possible by cutting large sheets of wood from logs. The sheets are at right angles to one another and glued together using interior or exterior-rated structural adhesives. Interior plywood is generally glued with urea formaldehyde based glues; exterior plywood and marine plywood use phenolic formaldehyde glues and are water resistant.

Also see FIRE RETARDANT PLYWOOD.

Floor & Roof Truss Materials used in Building Construction

Details about wood roof and floor trusses are found at TRUSSES, FLOOR & ROOF. Excerpts are below.

Wood Floor & Roof Truss Photos

Truss example © Daniel Friedman at InspectApedia.com Truss example © Daniel Friedman at InspectApedia.com

Our photos show an attic view of modern roof trusses (above left) and floor trusses (above right).

Truss uplift, a cosmetic not a structural defect, is discussed separately at TRUSS UPLIFT, ROOF

Metal Floor & Roof Trusses

Details about metal roof and floor trusses are found at TRUSSES, FLOOR & ROOF. Excerpts are below.

Steel roof trusses do not "rot" of course, but they too are vulnerable to damage from water, leaks, and rust.

Truss example © Daniel Friedman at InspectApedia.com Truss example © Daniel Friedman at InspectApedia.com

Below our photo shows steel I-joists used in floor structures.

Steel web Truss example © Daniel Friedman at InspectApedia.com

Also see  I-JOISTS, FLOOR & ROOF

and see FRAMING METAL STUD PERFORMANCE

Welded Wire Sandwich Framing Panelized Construction

Welded-wire sandwich framing panels: polystyrene or polyurethane foam core insulation is surrounded by a welded-wire space frame.

(History & dates in process, contributions invited)

 

Reader comment: first timbers cut with broadaxe

On 2020-05-21 - by (mod) - how old is this pine beam in my Ontario Canada home?

age of old house framing in Ontario Canada (C) InspectApedia.com CarolCarol that looks like a hand hewn log but it color is surprisingly-light for what should be an old log beam.

You will want to take a look at

SAW & AXE CUTS, TOOL MARKS, AGE for additional building age clues likely to be available when examining building framing materials.

On 2020-05-21 by Carol

Sorry the wrong pic came through. Hopefully this pic of the log joists shows up. They look hewn to us but we are by no means experts.

On 2020-05-20 - by (mod) -

Thank for the question and photo, Carol, but also please forgive me: I can't make out a thing like log beams in your basement.

In general, a home built with un-dressed (round un-sawn) beams could be pre-1900 though in some areas even modern builders might, in constructing a DIY rural home might also use logs.

See if you can find nails, old hardware, trim, window details, or roof ramign or any other older components and we can work on this question a bit more.

On 2020-05-20 by Carol S.

age of old house framing in Ontario Canada (C) InspectApedia.com CarolWe recently bought an older Cape Cod style rural home in Ontario, Canada that has been completely renovated inside and out, although they have retained some of the original clapboard walls and wainscotting.

The age of the house seems to be unknown and it is hard to guess as it now looks fairly modern. I am hoping that you can help provide an approximate age based on the log joists that can be seen in the ceiling in the basement. They have been supported with new wood in recent years.

The basement also has a door to some kind of rectangular shaped crawl space that seems to be dug right into the rocky ground. Any help you can provide would be really appreciated!

On 2016-12-17 by Paul Tonner - 5/8" gyproc sheets required by the Ontario building code.

My external walls are 2x4 x 8' studs, 16" centre with blocking between studs at 4' height and diagonal 3/4" T&G board external sheathing. I have just added an attached garage. I have removed the siding on the adjoining wall in preparation for the addition of the 5/8" gyproc sheets required by the Ontario building code.

However, before proceeding I am considering removing the T&G sheathing in the adjoining wall so that I can easily add some wiring and improve the insulation. Here is my question: if I do decide to remove the sheathing on the adjoining wall is there any reason to replace it? If not, I would just install the 5/8 gyproc sheets directly to the studs.

On 2016-08-29 - by (mod) -

Michele,

Use the "add image button" to post photos for comment - one image per comment. When I see the framing I may understand the markings.

Daniel

On 2016-08-24 by Michelle

Hi we have a 200 year old farm house and some of the boards have hashtag marking on face. Two straight lines wi Cont with two straight lines crossed over the first set and then a third mark that is similar to a check mark crossing through all lines? Is this some sort of measurement or pricing?

On 2016-02-29 - by (mod) - Pasco County, FL wood wall framing spacing

Frank,

By e-text I can't see into your wall, but the most-common stud spacing is 16" on center.

Try taking a flash light and shining it along the wall surface to show up the drywall nail or screw marks - those will show you where studs are located. Another clue is to look for a stud to one side of an electrical outlet in the wall.

Or you can pick up an inexpensive wall stud finder tool at a building supplier in your neighborhood.

On 2016-02-28 by Frank

I live in,an apartment that was built in Pasco County, FL in 1984.
I am looking for the measurement on interior wall studs si I can gang a shelf.
I cannot find code for 1984 and I need to know if "typically", they were 16",18" or 24" off center. That will give me an idea on placement.
Thanks,
Frank
Text to: 8132701942

2016/07/28 Anonymous said: first timber prepared with double bit axe

The first timber introduced was done with a common axe, probably a double bit. It was not done with an adze

This comment appeared originally at SAW & AXE CUTS, TOOL MARKS, AGE

Reply:

Thanks for your comment, Anonymous;

I agree that intial cutting timbers was done with an axe and sometimes rough-hewn timbers may have been prepared with an axe but more commonly those first hewn timbers were used as round logs, sometimes with bark-on.

Lehman (2015) agrees that the broadaxe was used for hewing timbers (cutting down trees), a broad hatchet was used for hewing smaller timbers, and "The Carpenter's Adze-used to finish levelling the surfaces of sleepers and other floor pieces."

It's possible to somewhat flatten one or more sides of a round log using an axe, or double-bit axe.

Some timbers were hewn flat on just two sides, such as in the Missouri-French houses.

Most four-sided squared timbers we'll see in older buildings in Europe, the U.K., Russia, and in North America in standing buildings were flattened using an adze or a combination of adze and axe in which the axe made straight-on cuts into the log and the adz chopped out those chips and further flattened the surface.

Interestingly the adze is not a modern tool; it dates from pre-historic times when people made an adze out of chert or other stone.

Do you agree?

Question: is the old wood from a Leavenworth KS building valuable? What species is it?

2015/11/23 AUTHOR:Kreg (no email)

COMMENT:I brought some rough cut wood home today from a building in ft. Leavenworth dating back to 1875.

The floor joist are 3"×11.5" and still have hand made square nails in them. I was wondering what kind of wood it is and if it is worth anything

Reply:

Kreg, see SAW & AXE CUTS, TOOL MARKS, AGE for some details that may add interest and value to the antique wood that you purchased.

I can't say from a simple e-text just what species of wood you have, as pine, oak, and other species were widely used in the 1800's.

The most-common tree species in Kansas (assuming that's the Leavenworth to which you refer) include maple, horse chestnut, soapberry, and quassia. The first two may indeed have been used for special lumber but pine and oak were probably more common.

The value of your wood may depend on its condition, appearance, and thus its appeal as an antique material. Some specialists may also be interested in the wood for re-purposing. For example if the rough-cut surface is not suitable someone may run planks through a planer and use them to make furniture that is sold as constructed from antique wood. Be sure to document the actual history of your wood if you can: the building in which it was use and the building's own age and history.

See "Table 6 - Typical Framing Lumber Species by Time Period" on page 16 of the following document:


...

Continue reading at FRAMING METHODS, AGE, TYPES for the history and date ranges of various building framing methods or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see this

Framing Material Article Series

Suggested citation for this web page

FRAMING MATERIAL AGE at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to BUILDING AGE

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