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Walnut Window Sills

(4 customer reviews)

£1.00 inc. VAT


Our 44mm thick Walnut hardwoods produces the finest window sills – twice the thickness of a standard pine window sill.

Window sills can be made to any size and styled to your individual specifications, accommodating any cut-outs or overhangs around the window area. Like our shelves, we can also apply edging styles and corner designs to your window sills, and supply them finished with Danish oil or wax – all completely free of charge.

If you require any further assistance please don’t hesitate to contact one of our customer advisors on 0800 772 0275 or

Free Bespoke Services

We offer a completely free bespoke design service so that you can design your shelves precisely to your tastes. We can style the corners and edging, and add cable-holes or cutouts to fit around fireplaces, walls or wooden beams – just let us know what you need by completing the Special Requirements box on ordering.


We can round the corners of your shelves. Radius corners can be applied from 20mm to 100mm in size. Alternatively, we can apply a straight cut to the corners. These clip cuts can be angled to your specification. Obviously we can apply the corner designs to either corner or both depending on your needs.


We also offer a range of edging profiles: A small ‘pencil’ rounded edge, a larger rounded edge, bullnose or chamfered. If you require edging please remember to let us know which of the three sides you would like it edged (front, left & right).

Shelving Corners available diagram

Cable Holes

If you desire, we can also position holes within the shelf to allow you to run cables through. Again, please let us know where you would like the holes positioned and the size you require. Some people just want to run the cable through, while others need to be able to fit the whole plug.

Cut Outs

You may require some form of cut-out to fit the shelf around a corner, fireplace, wooden beam or other feature. This is no problem for us, we are happy to help. This is all part of the free bespoke service we offer you.

Our shelves are cut to your requirements free

Bracket Postions

All Floating shelves are pre-drilled to accept the concealed mounting brackets. As standard, we centre these holes 100mm from either end of the shelf (for shelves over 1.2 metres we will add an additional hole/bracket in the centre of the shelf. However, if you would like us to reposition the holes to avoid water pipes, electric cables or other obstacles please let us know and we will position them perfectly for your needs.

When placing your order, please remember to include the details of your bespoke needs in the ‘requirements box’ before checkout, or your shelves will be supplied square-edged.

If you require any design outside of these usual bespoke services, or have any questions at all please email us your plan or call us.

Fitting Instructions

tools you will need to fit our shelves

Tools you will need

1. Spirit level
2. Drill
3. Screwdriver
4. Tape Measure
5. Pencil

Step One – Safety (very important)

Use a wire/pipe power detector to ensure that there are no electrical cables or water pipes where you intend to position the shelf. You do not want to electrocute yourself or flood the house.

Step Two – Vertical positioning of your shelves

Use a tape measure or your spirit-level to mark the vertical position for your wall shelf with a pencil. Your mark should be for the top of the shelf bracket and bottom of the shelf.

Step Three – Draw a level line

Use the spirit level and a pencil to draw a perfectly horizontal line along the area of the wall where you intend to mount the shelf. If your spirit level has a measure on it, draw the line to the full length of the shelf. If not, use a tape measure and redraw the line a couple of times, until it is the same length of the shelf.

Step Four – Mark Positions for the Brackets

The positioning of the brackets is down to personal preference. Work out where you want to position the brackets and mark these positions on your horizontal line. Focussing on one bracket at a time, offer the top of the bracket up to horizontal line and centre on your positioning mark. Keeping the bracket perfectly still, use a pencil to mark the screwholes on the wall. (This is usually easier as a two-man job). Repeat this operation for each of the brackets.

Step Five – Drill into the wall (Make sure you have carried out step one!)

Use a wood drill bit for studded or plasterbaord walls or masonry bit for stone, brick or breezeblock walls. Drill into the walls on the dead centre point of all your screwhole markings. Drill the holes deep enough into the wall to fully accommodate the rawl plugs.

Step Six – Insert rawl plugs

Insert the rawl plugs into the drilled holes. Ensure that the rawl plugs are fully inserted and they all sit flush to the wall – tap gently with a hammer if necessary. If any of your rawl plugs are sticking out, they will prevent your bracket from sitting flush to the wall when mounted.

Step Seven – Fix Brackets to the Wall

Screw the wooden or chrome shelf brackets to the wall using a screwdriver and countersunk screws.
Safety – Ensure you use long sturdy screws and applicable rawl plugs. These will be taking all the weight of your shelf and its items.

Step Eight – Fix Shelf to Brackets

Position shelf to the supporting brackets and ensure it is level and sitting equidistant on the brackets. If using Chrome Shelf Brackets, use a screwdriver and countersunk screws to fix brackets to the underside of shelf.
If using Wooden Shelf Brackets, apply a small amount of strong wood glue to the top edge of each of the supporting brackets. Position shelf accordingly, remove any excess glue and allow to dry. Either apply weight to the shelf during glue drying time or use suitable clamps if you possess them.

Designer Edging

Our latest range of Designer Shelves are created exclusively by The Floating Shelf Company. Designer shelves are available in any of the four traditional hardwoods with the option of adding a one or two stripe contrasting timber design to the front edge of the shelf. The finished effect is striking and makes a real contemporary design statement.

Designer shelf stripe edging exclusively available from the floating shelf co

Simply order the shelf of your choice and then add the designer edging option to your order using the dropdown menu provided. Adding one contrasting timber stripe is £10, irrespective on the length of the shelf. The two stripe option is only £15 per shelf.

The designer option is available for all Floating, Wall & Alcove shelves, and window sills, to the Front Edge only. Therefore the designer option is not available for corner shelves or shelves with radius or clipped corners, and cannot be applied to the sides of the shelves.

If you have any queries, please don’t hesitate to contact us on 0800 772 0275 or email us

About Our Shelves

All our Shelves are produced from the highest quality Hardwoods. Our shelves are 100% solid hardwood – not laminated or veneered.

We can produce your shelves to virtually any design. If you need anything slightly different from what you see on this website, please contact us and we will try our hardest to accommodate you.

Your shelves are completely made from scratch exclusively for you in our workshop in Hertfordshire. Kiln-Dried planks are sawn, planed and sanded to a smooth 240grit finish.

We also offer a popular bespoke service completely free of charge. So if you would like straight cut or radius corners, a rounded or chamfered edging applied or need holes cutting to allow access for cables we can produce it for you. Simply call us or email your plan.

Finally, we will coat the shelves with 3 layers of the highest quality protective oil, wax or stain of your choice. If you wish to paint or varnish your shelves instead, please let us know and we will supply them to you unfinished.

All Floating shelves are pre-drilled to accept the concealed mounting brackets. As standard, we centre these holes 60-100mm from either end of the shelf (depending on the shelf size). However, if you would like us to reposition the holes to avoid water pipes, electric cables or other obstacles please let us know and we will position them perfectly for your needs,

Please be advised that our floating shelves are only suitable for mounting on exterior or stone interior walls. Or plasterboard stud walls – where the studs or noggins can be located and the fixing brackets are screwed directly into the wood. Again, we will happily position the holes so that you can mount your shelf to a stud wall.

Our Wall shelves with supporting wooden, or chrome, brackets are an ideal solution for shelves that will be mounted on a plasterboard or dot and dab wall.

Remember – we do not sell inferior ‘wood effect’ veneers, laminate, MDF or finger-jointed shelves. All of our products are the real deal – pure solid hardwood, made to perfection.

4 reviews for Walnut Window Sills

  1. Phillipa Prowse

    I’m so glad we chose your walnut window sills, they look so classy. The thickness of the wood means they look like a proper high quality chunk of wood. The colour and finish is perfect and the craftsmanship was spot on. Thank you.

  2. K Baker

    The walnut sills are gorgeous. We are so glad we chose your company, you made everything exactly as we wanted it to be and provided a great service.

  3. Shauna Halter

    I get so nervous buying things like this on the internet but you totally delivered in every way. Thanks for a great product and brilliant service. I will be passing your details on to friends and family.

  4. Mrs Megan Blandford

    Beautiful lumps of top-quality walnut, they’ve finished the windows (and room) off an absolute treat. Thanks to your team for getting everything perfect for us. Will highly recommend you.

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