What's the difference between sheetrock manufactured in the 1960s to 1970s and today?
I was knocking down a wall and had to bang the sheetrock with the hammer at least two or three times to make the initial hole. At first I thought it wasn't even sheetrock, it felt so much heavier and thicker than what is manufactured today. This house was built somewhere between the 60s and early to mid-70s. I know lumber was different back then - it's hard to match the new stuff to pre-existing lumber. I was told the same thing holds true for sheetrock. Just curious.
Not particularly different then and now. But there are several other possibilities for the difference you noticed:
1. The age has dried the product out. Concrete and wood will get harder with age. Sheetrock tends to get brittle and shrink. You may have experienced a thicker sheetrock that has shrunk and become a bit more dense which you mistook for a thinner modern size. Modern sheetrock comes in sizes from 1/4" to at least 1" thick and in some situations it is doubled.
2. In between the period of time of wood or metal lath topped with 3 coats of plaster and sheetrock there was a period where a product called "lath-board" was used. This was like sheetrock but it had big holes cut in it to give subsequent coats of plaster a key to hold onto. If your "sheetrock" was topped by a coat of plaster it may really have been lath board. The lath board would not have been much stronger than the sheetrock but a plaster coat, even a thin one, could very well be. This would also explain the extra thickness you noticed.
Changes to construction styles may occur at slightly different times in as new practices slowly become adopted. Although lath-board dates from the 30's common use in my area (NE) can be seen in the mid 50's to mid 60's. At the time a dressed 2x4's would have been 1 3/4" by 3 3/4 and shortly to change to 1 5/8 x 3 5/8 (they are 1 1/2 x 3 1/2 today.)
With respect to matching timber sizes it is not "hard." You just have to know how. "How" depends upon what you are trying to achieve.
Recently Viewed Woodworking Items:
White Oak Lumber Thick 5 4 Quarter Sawed Board Nicely Flaked Excellent, Hard Maple Lumber Thick 6 4 Clear Rift Sawed Board Excellent Quality, Cherry Lumber Thick 6 4 Quarter Sawed Board Straight Grained Top Quality, VERY AWESOME HEAVY DUTY QUILTED 8 4 THICK 105LONG XXXTRA CURLY CHERRY LUMBER, 1962 Large Industrial Premium Thick Leather Work Glove USA Lumber Handling, 6956 XXL XXXL THICK Lumber Mill Leather Work Gloves UNION made in the USA, 1962 XL Mighty Champ THICK INDUSTRIAL Leather Work Gloves UNION USA Lumber, White Oak Lumber Thick 6 4 Quarter Sawed Board Flakes Premium, Mahogany Lumber Thick 5 4 Flat Sawed Board Clear Straight Grained, Hard Maple Lumber Thick 5 4 Flat Sawed Board Clear Face Side, Thick Gray Streaked Buckeye Lumber Wood 2 x 7 3 4 x 39 5 8 Air Dried Ready, White Oak Lumber Thick 5 4 Quarter Sawed Board Flakes End to End Super Good, PAIR THICK HICKORY WOOD TURNING BOWL BLANKS LATHE LUMBER WOODWORKING BLOCKS, AAAA Curly Quilted REDWOOD Lumber Craft Musical Thick Blank 29, AAA Curly Quilted REDWOOD Lumber Craft Musical Thick Blank 20, 6955 XL Industrial THICK Lumber Leather Work Gloves Sliver Resistant Made in US, White Oak Lumber Instant Antique Thick 5 4 Quarter Rift Sawed Board Rays, Spanish Cedar Lumber Thick 7 4 Rift Sawed Board Clear Top Quality, GORGEOUS THICK 5 Ambrosia Maple Boards Lumber, Walnut Lumber Curly Thick Wide Flat Sawed Inclusions Absolutely Beautiful, Walnut Lumber Thick 8 4 Flat Sawed Board Straight Grained Excellent Quality, Cherry Lumber Thick 10 4 Flat Sawed Board Curly Clear Top Quality, Redwood Burl Lumber Bowl Turning Lathe Knife Call Blank 5 Thick, Walnut Lumber Thick 5 4 Rustic Flat Sawed Board Carpenter Ant Holes Tunnels, Alder Lumber Thick 7 4 Flat Sawed Clear Straight Grained Top Quality, Basswood Lumber 8 4 Thick Flat Sawed Carving Wood Clear Excellent, Walnut Lumber Thick 6 4 Flat Sawed Board Clear Straight Grained Super Good, Red Oak Lumber Thick 8 4 Rift Sawed Board Clear Appalachian Red Oak, Red Oak Lumber Thick 8 4 Quarter Sawed Board Flakes Clear Top Quality, Poplar Lumber Tulip Thick 8 4 Rift Flat Sawed Board Clear Straight Grained, Hard Maple Lumber Thick 10 4 Flat Sawed Board Clear Straight Grained, Hard Maple Lumber Thick 8 4 Carving Turning Wood Flat Rift Sawed Board, Cherry Lumber Thick 8 4 Quarter Rift Sawed Board Clear Straight Grained, Alder Lumber Thick 8 4 Flat Sawed Board Clear Superior Grade, 2445x1 Thick Kiln Dried Well Figured Beech Natural Edge Slab Table Top Lumber, Hickory Lumber Thick 5 4 Flat Sawed Board Clear Beautiful Straight Grained, Eastern Red Cedar Lumber 2 thick by 48 long by 6 wide, THICK Redwood Burl Lumber Bowl Turning Lathe Stock Knife Call Blank 8, Redwood Burl Lumber Bowl Turning Lathe Knife Call Blank 4 Thick, HUGE 12 Redwood Burl Lumber Round Bowl Turning Lathe Blank 6 Thick, 1 PC ANTIQUE PRIMITIVE WORMY CHESTNUT LUMBER BARN THICK BOARD GUITAR BODY TABLE, 5 pc RECLAIMED OAK BARN LUMBER WOOD 3 4 THICK 1 4 sawed, Walnut Lumber Thick 6 4 Quarter Sawed Board Clear Straight Grained Premium, White Oak Lumber Thick 5 4 Flat Sawed Board Clear Straight Grained, White Oak Lumber Thick 5 4 Quarter Sawed Board Flakes End to End Excellent, Walnut Lumber Thick 5 4 Rift Sawed Board Clear Straight Grained Premium, 5 4 Thick Figured Curly Flame Cherry Board Wood Lumber 9X39 1 2 FREE SHIP, 2 pc RECLAIMED OAK BARN LUMBER WOOD 1 11 16 THICK 1 4 sawed, OAK LUMBER 40X33 4X 33 4 THICK RED OAK WOOD FLAT ROUGH SAWN LUMBER, THICK Lace Maple Burl Slab Lumber Bar Mantle Table Craft Art Piece 41, 3 pc RECLAIMED POPLAR BARN LUMBER WOOD 1 THICK, 8 pc RECLAIMED OAK BARN LUMBER WOOD 5 16 THICK, 4 pc RECLAIMED POPLAR BARN LUMBER WOOD 1 THICK, Red Oak Lumber Thick 8 4 Rift Flat Sawed Board Appalachian Excellent, Walnut Lumber Thick 8 4 Flat Sawed Board Clear Top Quality Straight Grain, 3 pc RECLAIMED OAK BARN LUMBER WOOD 3 4 THICK, 4 PC CHESTNUT LUMBER WOOD BOARDS 7 8 THICK, 5 PC CHESTNUT LUMBER WOOD BOARDS 13 16 THICK, 3 MICHIGAN RED OAK WOOD BOARDS LUMBER KILN DRIED EXCELLENT 3 4 TO 1 THICK, LIVE BARK MARKED CHERRY LUMBER BOARD 40 X 51 2 X 15 16 THICK KILN DRIED WOOD,
Tags:
judge,,
judging,,
lies,,
lumber,
lumber thickness,
lumber thickness chart,
lumber thickness gauge,
lumber thickness measure,
lumber thickness planer,
wood_lumber
Related Posts
This entry was posted
on Monday, March 19th, 2012 at 6:39 am and is filed under Woodworking.
You can follow any responses to this entry through the RSS 2.0 feed.
You can leave a response, or trackback from your own site.
