The deck floor level should step down from the internal floor level by at least 75mm to avoid waterproofing problems that may occur due to driving rain.
How to build a deck on your house.
Build the deck flooring by laying down the treated decking boards parallel to one another on top of the elevated box frame and screwing down tight with the wood screws.
Create a similar line of three spots parallel to the first line and 3 feet away.
Install the railing kit according to the manufacturer s instructions and determine where a staircase will be installed.
Mark the length and position of the deck on the wall of your house with a pencil.
Mark three spots in a straight line each spot 4 feet on center from its neighbor.
Squeeze dabs of adhesive onto the top edge of each joist.
This notes the top of the posts.
Tack 8d finish nails into the joists alongside the first board to maintain consistent spacing.
Secure each end of the deck board with an 8d finish nail.
Create a third line similar to the others also parallel and 3 feet away.
Then you ll have to cut the beam that will go opposite the ledger board to the same length and attach corresponding joist hangers.
You will need to mark the finished level of the deck floor on the house cladding.
To build a deck first you ll need to nail joist hangers in place on a ledger board and attach the board to your house.
Create marks on the ground with the marking paint.
Diagonal bracing in the form of 4x4s bolted between the support posts and the beams at 45 degree angles can help resist movement on the deck parallel to the house.
Lay a straight deck board in the adhesive so its long edge overhangs the trim board by 1 inch.
Mark a level line at this height along the house.
Mark the width of the deck on the house as well to help you position the frame later.
Measure down the thickness of the decking plus the width of the joists and support beams.