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Measuring Custom Size Wood Shelves Around Windows and Outlets

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Tape measure and pencil beside unfinished wood shelves fitted around a bright window and wall outlet.

Make Every Wall Gap Work Harder

Custom-sized wood shelves can turn an awkward stretch of wall into useful storage, but measuring around windows and outlets takes a little thought. A standard shelf may crowd window trim, cover an outlet, or leave one side of a wall looking strangely empty. The right measurements help the finished shelf feel like it was always meant to be there.

Windows, outlets, switches, and trim are fixed boundaries. Instead of settling for a shelf that is too short or placed in an odd spot, we make each shelf to order around the dimensions your space needs. That means you can plan for balanced spacing, easy outlet access, and enough depth for books, framed art, plants, or holiday serving pieces.

Our shelves are built from sustainably sourced, FAS-graded hardwood and mounted with concealed Hovr brackets. With proper installation, they can support up to 300 lbs and include our Level for Life guarantee, so a carefully planned shelf can stay useful long after seasonal décor is packed away.

Map Your Custom-Sized Wood Shelves

Before choosing a wood species, finish, or shelf depth, map the entire usable wall. Start with the full width of the wall, then mark every feature that cannot move. A straight-on photo of the wall is also helpful when you are planning a custom project.

Write down measurements for:

  • The total wall width and height
  • Window casing, including the outer edges of trim
  • Outlet and switch cover plates
  • Vents, thermostats, cabinets, and door trim
  • Countertops or furniture that may sit below the shelf

Measure the window from the outer edge of its casing, not from the glass. Trim is part of the visual footprint, and a shelf that barely clears it can look squeezed in. Leaving a small, intentional gap around the casing creates a cleaner, more balanced result.

For unusual walls, custom dimensions let us build to the width, depth, and configuration that make sense for your layout. Photos, wall measurements, and a note about what you plan to store all help shape a custom quote. See our custom sizing options and request a custom quote.

Measure Windows for Balance and Clearance

Window-adjacent shelving is especially useful in fall, when living rooms, kitchens, and dining spaces often get refreshed before holiday guests arrive. Two shelf layouts tend to work especially well: matching shelves on both sides of a centered window, or one continuous shelf beneath it.

Matching left and right shelf lengths gives the wall a calm, symmetrical look. A shelf under a window can turn an unused ledge area into a display spot for serving pieces, plants, or seasonal décor. In either layout, measure from the outer trim edge and compare the open space on both sides before choosing lengths.

Don't forget what projects out from the wall. Curtain rods, drapery panels, blinds, and window cranks all need room to work. Measure how far these pieces extend, then choose a shelf depth that will not interfere with opening, closing, or adjusting the window.

For warm contrast beside white trim or painted walls, walnut floating shelves offer rich solid hardwood character in a tailored window display. Custom dimensions and concealed Hovr brackets help keep the shelf itself looking clean and intentional.

Plan Outlet Access Before You Order

An outlet can be easy to overlook until a shelf makes it hard to plug in a lamp, charger, kitchen appliance, or home office equipment. We recommend measuring the full outlet cover plate, its distance from nearby trim, and its height from the floor or countertop. Also account for bulky power adapters and cords, which often extend farther than the outlet face.

Depending on the wall, a shelf can sit above an outlet, below it, or stop before the outlet begins. Shelves above outlets need enough vertical room for plugs to go in and come out comfortably. They also need enough depth to avoid pressing cords tightly against the wall.

Gallery rail shelves can be a smart choice near accessible outlets because the raised rail helps hold books, artwork, recipe cards, and framed photos in place. This keeps the shelf useful without forcing everyday items to lean against plugs or cords. All our shelves include detailed installation guides, giving you clear, step-by-step installation confidence.

Choose Hardwood Depth for Everyday Loads

Shelf depth should match what you plan to keep on it, not simply the open space on the wall. A narrow shelf may be just right for small décor and framed art. Deeper custom-sized wood shelves make more sense for cookbooks, dinnerware, records, larger baskets, or appliances. For heavy dinnerware, we recommend extra-deep custom shelves with Hovr brackets.

Solid FAS-graded hardwood provides a different foundation than hollow or veneered shelving. Our sustainably sourced hardwood shelves are made to order and engineered with concealed mounting hardware for up to 300 lbs of capacity when properly installed.

If your room calls for a clean, light-toned look, white oak floating shelves pair naturally with many painted walls and window treatments. Feel before you buy with wood samples and compare species and finishes in your own lighting. Designers, builders, and other professionals can also explore our trade program for project support and preferred resources.

Turn Careful Measurements Into a Better Shelf

A well-planned shelf starts with the full wall, then works inward. Measure usable width, account for trim and outlet access, check window coverings and cords, and choose a depth that matches the load. Those few planning steps prevent a shelf from feeling crowded, off-center, or hard to use.

For first-time visitors preparing a space for holiday hosting, the $25 off signup offer can make the timing feel even better. Most importantly, keep your measurements together with a photo of the wall and a clear idea of what the shelf needs to hold. That makes it easier to select a shelf that fits the room, supports everyday use, and leaves windows and outlets doing their jobs.

Built To Fit, Made To Last

Browse our custom-sized wood shelves for made-to-order FAS-graded hardwood shelving with custom dimensions, up to 300 lbs of capacity, and our Level for Life guarantee. At The Mortise & The Hare, we provide detailed installation guides so you can install with confidence. For a custom project or help choosing the right depth and hardware, contact us for a quote.

Frequently Asked Questions

How do I measure a wall for custom wood shelves around a window?

Measure the full wall width and height, then measure the window from the outside edges of its trim or casing. Also note the open space on each side of the window and leave an intentional gap so the shelves do not look crowded against the trim.

Should floating shelves be the same length on both sides of a window?

Matching shelf lengths on both sides of a centered window usually create the most balanced, symmetrical look. Different lengths can work on uneven walls, but the shelf sizes should be planned around the available space and nearby features.

How much clearance should I leave between a shelf and window trim?

Leave a small, intentional gap between the shelf and the outer edge of the window casing. The exact amount depends on the wall layout, but the shelf should clearly clear the trim rather than barely touching it.

Can I install a floating shelf near an electrical outlet?

Yes, a floating shelf can be installed above, below, or beside an outlet as long as the outlet remains easy to use. Measure the entire outlet cover plate, allow room for plugs and bulky adapters, and make sure cords will not be pressed tightly against the wall.

What is the difference between a standard shelf and a custom-sized wood shelf?

A standard shelf comes in fixed dimensions, while a custom-sized wood shelf is made to fit the exact width, depth, and layout of your wall. Custom sizing is especially useful around windows, outlets, trim, vents, and other fixed features.