on low decks, deck benches can be plain seats with no backs. however, if the edge of your decking walking surface is more than 30 inches above grade, then your built-in bench has the building code obligation to act as a fixed railing system, too. in that case, the top of the bench back must be 36 inches above the decking.
step 1 - make the base. you will want to use 4x4's for the posts and the base of the bench. construct these in a basic box form and attach them to the deck using a drill. if you are placing these against the railing you can also attach them to the railing for added security. you want to have one square constructed for every three feet of bench.
now build your bench the easy way, using these bench brackets. simply bolt them down to your deck and bolt 5 ½' wide boards to the brackets. 2 x 6 planks or 5/4 x 6 deck boards .
incorporating deck bench into your outdoor décor is a great way to compliment the wood of your deck with handmade wood furniture. you can choose to use any wood you likecedar or oak are good choices because they have lovely wood grains and if you just put polyeurathane over it you can preserve the look of the natural wood.
using bench brackets for decks, the dekmate, make a short bench on one side of your deck or use as a railing with integrated seating around the pergola for sale crslist refferal:09 pergola ideas for shade code:24 26 brilliant guidelines for 2x4basics dekmate bench bracket, 2-pack - sand see more
attach skirt and bench fronts. you will want to measure for exact lengths, as these can vary a little as you build. using two screws per horizontal support, drill screws through skirt into supports along the back length of each bench. use a level as you attach skirt so your bench will be level when you are finished.
for a seamless look, build bench out of existing decking material. build bench to fit existing deck space or use as barrier at side of low deck. start by cutting frame from 2x4s. with circular saw, cut two long boards for frame sides and six cross pieces. sand edges smooth. when positioning center crosspieces, leave room for center legs between them, if bench is 8 feet long. pre-drill and screw together frame.
once all the brackets are in place, you cut your 2x4s to the required length. there were two options 36 or 42 depending on how high you wanted the back of your bench to go. i think we went with the taller length. diy/pro tip: the instructions say to drill through your 2x4s and bolt them together at this point.
leg/support assemblies into the brackets as shown make sure the bench support pieces face the outside if the bench is being attached to a pier or deck with bench structural solutions for small bump-outs - studio hamlet
therefore, the bench has to be supported by two 4×4 posts and a couple of brackets. in addition, you have to build a simple wooden frame in order to fasten the 2×4 wooden boards. the wooden posts must be fastened to the deck structure, as to be able to support your weight properly.
otherwise your deck may lack character and warmth. just a big expansive platform. but notice how this built in bench really added something both in terms of the look and function. they offer a place for people to sit. and they can act as a replacement for railings on a low level deck and really define the deck perimeter.
once all your brackets are attached to the piece of wood, you can move on to the next step. no, dont screw the brackets into the deck yet you can place the brackets upright at this point, then eyeball where your next two boards will go. again, we used some 2x6s cut to length . attach the treads