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Though both solid wood and engineered wood can be installed on a concrete sub-floor, the processes are quite different from each other. Solid wood is produced from a single plank of wood which can be reactive to both temperature and humidity changes which is capable of making the wood expand or contract. Hence, the different approach to solid wood and engineered wood flooring installation on concrete. Here, we’ll discuss how you can lay solid wood on your concrete.

First and foremost, you’d have to determine the method you’ll use to attach the planks to the floor. Is it floating whereby you only have to lay the wood flooring on the concrete after fitting the right underlay? You can also go for the most popular installation method which is gluing your floor with a flexible wood adhesive (to be applied to both the boards and the sub-floor). Or perhaps you’d prefer to use the traditional method of nailing the boards to the concrete (the nails will be covered as you lay the subsequent planks and the groove locks with the tongue).

After making this decision, you’d have to ensure that the sub-floor is well prepared for the installation. This implies checking the wood’s moisture content (mustn’t exceed 7 to 8 percent). Also inspect the floor to ensure its neat, if not, clear out the dirt or debris and make sure the surface is flat to avoid post-installation problems.

In the event whereby you discover a high moisture content, you’d want to acquire a damp proof membrane. This will not only enhance the floor’s stability, but also prevent shrinking or warping of the wood due to changes in humidity or temperature.

It is crucial to note that the preparation of the sub-floor is equally as important as the laying of the planks as this can go a long way to improve the durability and strength of your floor. Click here to learn more about wood flooring.

1. Place a post in the corner of the frame you created with the pegs and string. Measure and mark out 100mm from each side.
2. Dig out this soil to a depth of 700mm (watch out for cables or pipes). You should have a 300 x 300mm hole. Repeat for the other 3 corners.
3. Using a brick bolster, split a concrete block in two. Put a section of the block in each hole.
4. Get a length of post longer than you need and place one in each hole. You can cut it down later.
5. Create props on each post to hold them in place until you’re ready to add a cement mix. Check that they’re level. When you’re happy that they are, secure them in place with a concrete mix, making sure you create a slope in the concrete so that rainwater runs away from each post. When the concrete is set, remove the props.
6. Create a string line around each corner post and find the centre point between each. Place a timber batten at each point, ensuring that they’re not spaced any more than 1500mm apart.

1. Working from the corner where the deck will be at its highest above ground level, measure and mark on the post where the highest part of the frame will be.
2. Measure from the far side of one post to the opposite and cut sections of joist to size. Line up a piece of joist with the mark you made and temporarily secure it. Factor in a 2mm fall for every metre of decking so rainwater can run off.
3. Secure the frame to the other corner post, ensuring it’s at the right level. Do this for every side of the outer frame.
4. Using 100mm coach screws with washers hanging on the end, secure each end of the four sections of frame.
5. Mark out where the centre of the support posts will be and secure all of these posts to the frame, except the centre post.
6. Add your central support joists. These should run in the same direction as the deck boards will run. You’ll need to measure from the inside of the frame on one side to the inside of the frame on the opposite side. Attach the joist in the same way as you did for the other posts. Repeat so the centre post is in between two sections of frame and secure the posts with concrete.
7. Trim down all the posts to the correct height using a saw.
8. Add your weed-control fabric and weigh down with gravel across the entire area.

1. Measure 400mm from the centre of the outer frame and mark a line. This will be where the first joist is positioned. Repeat at 400mm intervals down the length of the frame – if the last one will be more than 400mm, add another joist to create enough support.
2. Attach a joist hanger to each end of the joist.
3. Place the joist in position so the centre lines up with the 400mm spacer mark.
4. Secure using external grade screws once you’re happy that the joist is flush with the frame.

1. Calculate the surface area for your decking Multiply the length (L) of your decking area by the width (W): L x W = Decking Surface Area (DSA) in m² 10 x 6 = 60m²
2. Work out the coverage of your deck boards Add your deck board width (DBW) to the expansion gap length (EGL), then add the deck board length (DBL) to the expansion gap width (EGW). Then multiply these numbers. (DBW + EGL) x (DBL + EGW) = Single Board Coverage (SBC) 0.144m + 0.005m = 0.149m 2.4m + 0.003m = 2.403m 0.149 x 2.403 = 0.358m²
3. Calculate the number of deck boards you need Multiply the SBC by 1.1 to allow for 10% wastage. Then, divide the DSA by the SBC. DSA / SCB x 1.1 = Total number of boards required 60m² / 0.358m² x 1.1 = 184.36 boards – so round up to 185 so you’re not left short.

How To Lay Wood Flooring

Laying of wood flooring is actually a very simple task contrary to many beliefs. First and foremost, before commencement of the fitting process, you must determine the direction you would like the engineered wood flooring to lie in. To do this the right way, they should lie in the direction of the the longest wall. However, if your subfloor is wooden, then having the boards positioned across the joists underneath would be your best bet to get started.

Here are some simple steps to follow to properly lay your wood flooring:

• Start from a corner, working from left to right and place the initial rows of the boards with the groove’s end directly opposite the closest wall.

• Make use of expansion spacers. Place them in between the wall and the board alongside an expansion gap of about 8 to 10mm.

• Place the board’s final rows at about 100mm wide. To achieve this, it is crucial to be pro-active with the measurement and cut the boards (if you deem fit) to adjust the first row.

• With the help of the click system, the boards will click together.

• Fit in the next board. Ensure to attach the tongues together (30 degrees from the floor) and once done, you can proceed to lower and lock it in place. Do this till you get to the end of the row.

• Cut the last board of the row to size if its too long.

• If the part cut off is up to 300mm, simply use it to start the next row. If not, cut a new board in half to use.

• Put the rows side by side in such a way to ensure the joints are staggered at each and every row. Keep a consistent gap between the wall and the planks via the continuous use of the spacers.

• Lay a plank over the last row to determine the width of the previous board. Position a new plank in a way that its tongue is directly against the wall. Once done, proceed to mark a line of plank underneath to get the required width. Then, fit the plank into the space with the help of a pull bar and hammer.

Click here to learn more about wood flooring.

1. Plan your shed base You must have a sturdy base for your shed, otherwise the frame won’t stand properly and could stop the door from opening. Decide whether you’re going to have:
   • A concrete base laid on hardcore
   • Concrete slabs on sharp sand
   • Treated wood beams on hardcore or shingle
   • An interlocking plastic system
   All bases should be laid on firm, level ground as far as possible.
2. Treat wood with preservative To help your shed last as long as possible, you should coat all the wooden parts with timber preservative before you put it together.
3. Put the shed floor together Some will need more assembly than others, but you need to make sure that the floor panel is attached to the joists; follow the manufacturer’s instructions for the correct spacing.
4. Put up the shed walls
   • Mark the centre point of each wall on its bottom edge, then do the same for the shed floor so you can line them up together.
   • Stand the gable end on the base and line it up. Check that it’s vertical with a spirit level – you might need someone to support the panel while you do this. Use a temporary holding batten to keep it in place.
   • Fix a side panel to the gable end panel with countersunk screws, then add the second side panel in the same way.
   Don’t attach the panels to the floor until you’ve fitted your shed roof.
5. Fit the roof
   • If the shed comes with a support bar, put this in position before you put the roof panels in.
   • Nail the roof panels in place, ensuring there’s a parallel and equal overlap at each end.
   • Roll out some roofing felt from front to back, leaving a 50mm overlap at each side. Secure it with clout-headed felt tacks at 100mm intervals.
   • Apply mastic sealant to the outside corners, then fix each corner trim with 30mm nails.
   • Add the fascias and finials, predrilling 2mm holes to avoid splitting the wood. Nail them through the felt into the shed using 40mm nails.
6. Add the shed windows
   • Slide each windowsill into the tongue and groove cut out, then put the window cover strip in position, fixing it to the vertical framing.
   • From inside the shed, put the glazing sheets into the window rebates, making sure the bottom edge of the glazing sheets sit on the outside of the sill.
   • Fix the window beading on the top and sides with 25mm nails.
7. Fix the walls to the floor Before you do anything, make sure you check that the centre marks on the walls line up with the marks on the shed floor. Then fix the wall panels to the floor with 50mm screws, aligning them with the joists.
And that’s it! But if you’re not confident in building a shed yourself, there are plenty of professionals available who will be happy to help.

1. If you’ve not got an overhang or it’s a fixed deck, fit starter clips along the outside edge of the frame and secure with screws provided with the composite decking. If you are working with an overhang, put the first board into position not exceeding 25mm. If you’re adding a fascia, put an off-cut of board under the overhang so you know it’ll be flush with the fascia.
2. Pre-drill all fixing points, measuring in 30mm from the edge of the board. Secure the board to the joist below with composite decking screws.
3. Slide a hidden fastener clip in so it sits within the groove of the deck board. It needs to be in the centre of the joist to keep the boards secure and ensure an expansion gap of 6mm. Tighten the clips until just tight, and repeat so there’s a clip at every joist.
4. Add the next board, ensuring that the fastener clips sit within the groove – make sure you don’t force it. Repeat step 3.
5. Continue steps 3 and 4 until you’re at the final board, which you should secure in the same way as you did the first.

• Tongue and groove timber boards
• Boards for the ledges and braces, at least 20mm thick
• Nails
• Hammer
• Saws, including a circular saw
• Chisel
• Mallet

1. Cut your boards to size If you can’t buy boards at the right height and width for your door, cut the boards to length using a circular saw. Don’t forget to sand and treat any cut ends with timber preservative. Lay out the boards in the best arrangement for your shed door, with the inside of the door facing up.
2. Arrange the ledges and braces On most shed doors, you’ll probably need 3 boards across the back of the door to form the ledges. The ledges keep the door straight and keep the boards of the door together. The braces are the parts of the door that slope down to form a ‘Z’ shape between the ledges. Ensure that the braces are sloped up from the bottom and middle hinge to stop the door from sagging as the timber expands and contracts in the weather. Once you’re happy with the arrangement, mark the spots on the boards where they will meet and cut out of the housings using a chisel and mallet.
3. Put the door together Use clamps to pull the boards together and hold the ledges and braces in place. Nail from the front of the door through the boards and ledges to fix them. Secure the ledges and braces with screws; you may want to pre-drill and countersink holes to prevent the wood from splitting. Remember to treat them with preservative if you do.
4. Fix the shed door hinges Make sure you measure carefully before attaching the hinges, ensuring you know where the pin sits in relation to where the door opens.
5. Treat the door and add locks and handles Apply some wood oil, like linseed or teak oil, to help prevent water damage. Then add locks or handles to your shed to help keep it secure.
If you’d rather leave it to the professionals, there are plenty of specialists that will be able to make a shed door for you, or even put up an entire shed.