31 Studs not counting corners
the wall thickness of sch 40 - 500mm dia pipe is 15mm or 16mm.
wall thickness of the pipe
800 C feet
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
Top plate, bottom plate, end cap for both sides and studs spaced at 16" centers. You may also have a door frame with a header and bracing. Friday September 27th, 2013 9-/27-/13 By:Eliesyn Rene Velez Jr. Source:Yahoo CTEA HS 104 st 11:40 am 5TH period
40 foot = 40 feet
If you drywall on 16" on-centre studs, with sheet length perpendicular to the studs, and screw the two outside length edges at 6" spacing (as it should be) and the two interior studs at 12" spacing, the answer is 48 drywall screws per 4'x8' sheet.
40 x 50 = 2,000 (sq ft).
5 x 8 = 40 40 square feet
40 yards
2444
It is not possible to answer this question since a 40 foot octagon could be extremely long.
1,000 square feet.
A total of 160 square feet.
12 feet X 40 feet = 480 square feet.
40 of them.
On a per-foot basis, it would be the thickness of the wall in feet multiplied by the height in feet multiplied by the combined density of the brick and mortar. My AISC manual has 120 lbs per cubic foot for a normal brick wall, so a typical single wythe wall (4" thick) would weigh 40 lbs square foot of face area.