You can save a substantial amount of money by constructing your own veranda. Typically, hiring a professional to build a veranda of this size could cost around £2200, but I managed to build mine for just £431.96. So, if you’re interested in having a veranda, canopy, patio cover, pergola, or a simple lean-to, consider tackling the project yourself and potentially save over £1000. In this post, I will guide you through each step of how I created this fantastic addition to my home and garden. It has significantly expanded our living space, offering a comfortable place to sit regardless of the weather.
Most competent DIYers can achieve this structure with a few basic tools. The main structure uses the house and good ground supports for anchor points and the canopy for weather protection. The materials I’ve used can be found in most DIY stores but I’d recommend buying the corrugated sheeting online if you can’t find the correct thickness. It’s better to buy the 1.1mm thickness as opposed to the thinner 0.8mm sheets sold in B&Q. The thicker sheets last longer and won’t be as noisy in heavy rain.
We added some decking & guttering afterwards which cost an additional £450.
Here is another veranda I built recently with solid polycarbonate roofing sheets. It’s quite a bit more expensive but worth it if you can afford it. Read the full guide here:
Table of Contents
- Does a veranda require planning permission?
- Materials list for DIY veranda
- Tool list
- How to build a veranda – Step-by-step guide
- Readers DIY veranda
- A new house and a new veranda (June 2022)
- My top posts
- How to build your own shed from scratch – on a budget
- How to build a garden office from scratch – on a budget
- How to build your own decking area on a budget
- How to make this DIY veranda with a solid polycarbonate roof
- BillyOh Kent Log Cabin Review And Step-By-Step Build Guide
- How to insulate your BillyOh garden office log cabin
Does a veranda require planning permission?
Before you get started on your veranda, one important question that many people have asked me is – Does my DIY veranda require planning permission? More often than not you won’t need planning permission but check the below list and keep your construction within the guidelines. You can also check the UK Planning Portal for more information and it’s always worth checking with your local planning department before you get started.
Veranda planning permission requirements:
- Must not be wider than the existing building.
- The maximum depth for a single storey building must not exceed 3000mm for an attached building and 4000mm for a detached building.
- The maximum height must not exceed 3000mm.
- The maximum height of the eaves within 2000mm of a boundary shall not be greater than 3000mm.
- Raised platforms must not exceed 300mm.
- No extension in front of the main elevation or side elevation fronting a public highway.
- The total area of ground covered by the veranda must not exceed 50% of the land around the original house.
Background and detail
After deciding the size of the veranda I needed to check if it would actually fit under the eaves of our roof. We live in a chalet bungalow, therefore the roof comes down quite low, so I had to decide whether the top edge of the veranda would go over the roof eave or under. Luckily the eave was just high enough to go under and allow enough run off to the end of the veranda without going too low. The measurements are:
- Top edge height (under eave)- 2400mm
- Bottom edge height – 2150mm
- Length – 2400mm
- Width – 6900mm
I was initially concerned with the run off angle of the roof (the pitch) to avoid water becoming stagnant. I ended up with a 4 degree pitch which was just enough. Water tends to sit much easier on plastic than with glass so bear this in mind when planning your own.
With this being nearly 7m wide I knew two support posts weren’t going to be enough, but three post would be fine. We considered protruding 3 meters into the garden but decided that 2.4 meters was enough. The 3m length would have cost about an additional £120.
Finding the correct materials
I used building grade wood for the structure and some basic 2×1 pine for the purlins. If you want a chunky, stable build then look for C16 building certified wood. I shopped around and struggled to find a reasonable priced merchant with good delivery prices. In the end I found a merchant on eBay with great prices and free next day delivery. See below for sourcing timber. You can also use sites like ArchiPro to find building and hardware supplies.
I also purchased a number of other items from various sellers on eBay including the 100 x 100 support posts, galvanised steel post shoes, Vistalux corrugated heavyweight (1.1mm) plastic roofing sheets and Vistalux roofing sheet fixings. Make sure the corrugated sheets are 1.1mm or 1.3mm.
My other items were purchased at a local Wickes who also offer delivery on bulky items if you don’t have suitable transport.
Materials list for DIY veranda
- 150 x Vistalux fixings
- 10 x 2440mm corrugated PVC sheets (1.1mm) (weather proof roofing)
- 3 x galvanised 100 x 100mm post supports (for fixing the support posts to the floor)
- 12 x 2.4m 6×2 (47x150mm) C16 treated timber (for the rafters)
- 2 x 3.6m 4×2 (47x100mm) C16 treated timber (rear wall fixed supports)
- 2 x 3.6m 6×2 (47x150mm) C24 treated timber (outer supports that fit onto the support posts)
- 16 x 1.8m (9x18mm) pine wood (for the purlins)
- 3 x 2.4m 100x100mm treated timber (support posts)
- 12 x 120mm hex drew bolts M10 and wall plugs (for fixing the 4×2 to the house wall)
- 12 x 60mm hex screws M8 and plugs (for securing the post supports to the floor)
- 6 x 110mm M10 bolts and nuts (including washers)
- Assortment of screws
To complete this job consider investing in a few essential tools. This is what I recommend but you can compromise where your budget won’t allow:
- Drill driver and impact driver – It’s always cheaper to by the set – Dewalt combi set
- A circular saw – Dewalt cordless Circular Saw
- A jigsaw – Dewalt cordless Jigsaw
- Socket and drill set – Makita 50 piece set
- Handsaw – 22″ 8TPi saw
- Tape measure – 8m is ideal for this job
- A protractor – try this one
- Set square – or roofers square
- Pencil – carpenters pencil
- Metal ruler – or aluminium
If you’re thinking of ripping some of the timbers into thinner strips then think about the best track saw for the job. Most of you won’t want to do this but it can help make the timber go further for less money.
How to build a veranda – Step-by-step guide
Step 1. Support post fixings
- Measure up and find the equal distance for the 3 posts to be placed. Don’t go right up to the edges of the veranda. Come in about 300mm each end and 200mm towards the house along the rafter.
- Place the post shoe on the floor and mark out the four holes.
- Drill the four holes with a masonry bit and insert the plugs.
- Bolt each corner down using the 60mm M8 screws.
- Repeat with the other two support posts.
Step 2. Support posts
Prepare the support posts. Your two 6×2 timbers will sit on these so you will need to cut a section out the top. (47x150mm)
- Measure the total height, in my case it was 2000mm plus the 150mm for the cross beams so 2150mm total. Cut the post to the correct length using a panel saw.
- Mark up the 47x150mm insert for the cross beams and cut this section out. Use a circular saw and panel saw for this.
- Once complete insert the posts into the supports. They should be a tight fit and stand on their own.
Step 3. Cross beam supports
Attach the cross beams (3600x47x150mm). To ensure I had good support all the way along the two beams I cut both at an angle and attached and bolted together on the centre support post.
- Cut one of the lengths at 55 degree angle as pictured. Use your circular saw.
- Lay this on top of the other piece and mark up with a pencil. Cut the pencil line.
- Drill and bolt these two pieces to the support posts using 110mm bolts and washers.
Step 4. House support beams
Fitting the 3.6m (47x100mm) beams to the house is next.
- Mark a level line across the back of the house and mark up your drilling locations along the beam.
- Using a masonry bit and the drill on hammer action drill about 65mm into the wall.
- I selected a total of 10 points along the wall, drilled, plugged and fastened the 120mm bolts and washers.
Step 5. The rafters
This was relatively easy once I worked out the angles to cut. To ensure the rafters fit under the eaves of the house I had to cut an indent into the wood and again at the other end to ensure I kept the 4 degree run off. To calculate the rafter cut angles I used this online triangle calculator. The below image might help you understand how I achieved this.
Important: Check the timber lengths before cutting notches. They won’t all be exactly the same length. I found some to be a few millimeters different. It’s important to cut them all to the same length first.
- Cut each rafter notch as described above using a circular saw and jigsaw.
- Cut a 45 degree angle at the end of each rafter, as seen in the below image.
- Mark up 12 equal points along the support timbers
- Place a rafter one at a time and secure with a 80mm screws into the top, down into the support post.
Now onto the roofing.
Step 6. The purlins
The corrugated roofing on the DIY veranda had to be supported by purlins which are the smaller lengths of wood that fit crossways along the rafters. These are to ensure you get good support and fixing points along the veranda for the roofing sheets.
- Using a 2×1 timber (or 25mmx50mm) secure 3 runs the entire length of the veranda. See below image.
- Secure these in place with 60mm screws.
Step 7. Fitting the roofing sheets to the veranda
The final job was to fix the roofing sheets to the purlins.
- Using a ladder, screwing pilot holes along the sheets at the location of the purlins. Ensure the screw points are at the top of the corrugated curve, not in the dip.
- It’s important that you use the correct roof fixings to secure the sheets in place. These capped screws will protect from water leaking through the sheets.
- Starting at one end, secure one sheet to the structure ensuring it is 100% square. Any angles will prevent the front edges from lining up correctly. It’s advised to place two or three sheet before you start securing them.
- Insert about 4 screws per sheet, per line. 12 in total for each sheet.
- Overlap the sheets with 2 curves to secure a good watertight seal between them.
You can also find self tapping roof fixings which prevent the need for pre-drilling holes.
Step 8. Finishing the DIY veranda
This takes us up to the finished DIY veranda project. Painting the veranda will make a huge different to the overall aesthetics but it’s up to you. I used a grey exterior wood paint.
Now all we need is some nice decking and furniture to enjoy our new outdoor space and maybe an electric patio heater for cooler afternoons to comfortably enjoy a cup of tea! But that’s for another time. Please feel free to comment below and share your experiences.
Update March 2020. I’ve recently added some decking and guttering which cost an additional £450. Click here to read how to install the decking.
If you’re not up for the challenge then why not consider one of these alternatives:
Save money on tools and materials
Save money on you tool and material purchases with a cash back account like TopCashback. I’ve been using this site now for a few years and generated over £1000 on all my everyday purchases.
Here’s a snapshot of my current earnings
Before and after pictures for this DIY veranda. Read about the DIY decking here.
As you can see we’ve recently renewed the patio. Read all about this DIY porcelain patio here. The DIY veranda, decking and patio make the perfect combination.
Here’s a quick look at my latest project. A DIY garden sofa and table set made from Iroko wood.
Readers DIY veranda
Here are a few pictures from one of my readers, Jon. He’s done an amazing job with added trellis walls and railings to add some privacy and divide between this and the rest of the outdoor space. Proper job!
Save more money on your DIY veranda
If you are interested in saving a bit of money on all your DIY projects why not take advantage of a cash back site like ‘TopCashBack‘. I used this site for all my online purchases and accumulated well over £1000 in just 3 years. A nice little bonus for some new tools! My wife has also been using TopCashback and together we’ve generated over £2800. Here’s a screenshot of my current earnings.
A new house and a new veranda (June 2022)
Take a look at my latest veranda build. We loved the last one so much that I decided to build another one in our new house. This time I used a glass-like material for the roof and sealed it against the house. The solid polycarbonate sheets do cost more than 4 times the amount of the corrugated stuff but they look far nicer. They could easily be mistaken for glass.
You are going to save a reasonable amount of money doing this yourself but you will need to ensure the structure is safe and secure to withstand strong winds and heavy snow fall. If you don’t feel confident managing this yourself then consider hiring some professionals like these guys for some help.
My top posts
Take a look at some more of my projects for inspiration:
- How to build a garden office from scratch – on a budget
- Under stair drawers
- How to build your own decking area
- How to build your own shed from scratch
- How to build your own radiator cover
- How to restore weathered wooden furniture
- How to build a raised planter with seating
- How to replace architrave and update your doors