designer mother of the bride dresses

# How do i calculate how many joists i need

This is the distance between joist centres. Usually 400, 450 or 600mm, but any value can be used up to 610mm max Usually 400, 450 or 600mm, but any value can be used up to 610mm max 1.2 Timber strength class and joist size.

Calculate the number of sheets of plywood required for the subfloor of the room. Because the floor area is not guaranteed to be variations of 8 feet, figure the area by multiplying length by width. Thus, a room 12 feet long and 12 feet wide is 144 square feet. A sheet of plywood has 32 square feet. So 4 1/2 sheets of plywood would be needed.. So, if you know the lengths of two sides, all you have to do is square the two lengths, add the result, then take the square root of the sum to get the length of the hypotenuse. Pythagoras's Theorem © Eugene Brennan Example Problem Using the Pythagorean Theorem The sides of a triangle are 3 and 4 units long. What is the length of the hypotenuse?.

If we apply the formula I mentioned above for a large inflatable hot tub, we have: Weight of the spa (empty) = virtually nothing # of gallons of water (290) x 8.34 lbs (how much a gallon weighs) = 2,418.60 Add those 2 numbers = 2,418.60 # people (6) x 175 = 1,050 Add that number to the previous total = 3,468.60.

jointing tape