Square Window Sills

Free delivery on all Square Window Sills
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100% Solid Oak
Unbeatable Quality & Service

These stylish and modern square edge window sills use only the best quality kiln dried Oak, and each individually machined and finished by hand to an unbeatable standard and unbelievable price.

Item 1 to 2 of 2 items

20mm Square Window Sill

From £49.95

25mm Square Window Sill

From £51.95

The modern square edge sill.

If you’re after a window board that is solid oak, modern and sleek, then our square edge window sill is the perfect choice. As one of our most popular window sill profiles, the square edge is a modern design that enhances any room.

20 or 25 or 30 mm
0.6 to 2.4 m
200 to 300 mm
Square window board profile

The perfect contemporary sill.

As with all of our window sill styles, the square edge range is machined accurately and finished by hand to ensure that you receive an oak sill that shows off the beauty of natural solid oak. We carefully select every piece of oak that we machine and sand-finish before delivering direct to your door. Offering excellent durability and demonstrating beautiful natural grain, you’ll have made a great choice with our square edge solid oak window board.

(600 to 2400mm) x (200 to 300mm) x (20 to 30mm)

Free 'cut to size' service available

American White Oak

Choose your square sill

Use our free 'cut to size' service for the perfect fit square sill as soon as it arrives

Did you know that at no additional cost, we'll trim your sill to the exact length and width that you need, saving you time and money.

The length you need.

No more costly wood waste! We don’t want to see you having to spend money on buying excessively long window sills, just to then have to cut the sill down to the correct length to fit your window reveal. Not only is it a waste of good oak, it's a waste of your money too. Instead, we provide the option to buy square window sills in increments of 0.3m (300mm), starting at 0.6m up to 2.4m in length.

The width you want.

Whether it’s a narrow or wide square edged window board that you’re after, we’ve got you covered. With pre-set options of 200mm, 225mm, 250mm, 275mm and 300mm we can meet the requirements of nearly everyone. But we don’t stop there! We can even handle narrower and wider window sills, all machined in one solid piece of oak if you’re after something a little bit different.

The thickness to suit.

Our square window sills can be machined to any thickness to meet your requirements. We have 3 pre-set options to choose from; 20mm, 25mm and 30mm, although we’re more than happy to cater to bespoke thicknesses if you require them. In fact, with our cut-to-size service it’s not only the thickness that you can have customised but also the length and width combinations too.