Summary: Learn how to do decking, lay decking, treat the timber, lay a base, construct the decking, construct raised decking, install posts, fix the frame, fix the boards, erect a balustrade and steps, assemble the steps, construct a stringer and fix the steps.
Timber decking can be an economical means of creating a sun terrace or outdoor seating area. Decking can be designed to fit any space, and can either be erected at ground level or raised on a platform. If you live in a listed area you will need to get permission from your local Building Control Department, as well as planning permission.
Make sure that the timber you buy has been suitably pressure-tested and weatherproofed. If you cut the timber, you will need to treat the cut ends with wood preserver as well.
Place concrete slabs every metre around the marked out area and check that they are level.
Lay weed proof membrane over the area, cutting around the slabs with scissors.
Spread gravel around the slabs to level out the surface.
Position the first decking board on the edge of the frame furthest from the house and screw it to the frame in each corner.
Leave an expansion gap of 5mm between the boards.
To construct a raised decking, you will need to secure the platform to posts in the ground. These can be fixed to concrete with post brackets, or concreted into the ground.
Support the frame on blocks or bricks and use a spirit level to check that it is level.
Position posts at regular intervals inside the frame and mark around them with a trowel.
Insert frame fixings into the holes in the frame and fix the frame to the wall.
After securing your posts, saw off any excess so they are flush with the frame.
If you are intending to install steps in the decking, you will need to make an opening between the sections of balustrade. Your balustrade kit should contain newel posts, handrails, and balusters or spindles. A raised decking kit will come with stringers and tread boards as well. Ensure your kit contains enough newel posts to place one each side of the steps as well as in the corners.
Cut a 20mm rebate from the base of each newel.
Resting the newel on the decking drill two holes through the base of the newel into the decking frame.
Use your batten as a template to maintain the space between each spindle.
If the steps are being placed on soil, level and weedproof the surface. You could use a paving slab or gravel to do this. If you are using a kit, simply fix the stringer to the frame and screw treads onto the supports.
Screw the treads onto the stringer supports.
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