The fastest way to make a small home bigger is to use the outdoors as a room. A pass-through window turns the kitchen counter into an outdoor bar. A folding or sliding glass wall opens the living room to the patio. A daybed built into a large window gives you a place to sit in the light that doesn't take up floor. These are the Extend move, and they work best when they're planned with the building.
At every budget. You don't need a wall of folding glass to live outdoors. A fold-down bar under an existing window, a folding bistro set, and string lights cost little. A wide sliding door or window sits in the mid-range. Custom folding walls and gas-strut pass-throughs are the premium end.
Three ways to extend
| Move | What it does | Plan with |
|---|---|---|
| Pass-through window | Kitchen serves inside and out | Counter height, outdoor bar ledge, weather |
| Folding or sliding glass wall | Living room opens fully to the patio | Structure, threshold, weather sealing, screens |
| Window daybed | A seat and guest bed inside a big window | Egress, glazing safety, cushion depth |
1. The pass-through window
A pass-through window opens above the kitchen counter to an outdoor ledge or bar. Gas-strut windows lift up and stay open like an awning, so nothing swings into the kitchen or the patio.
- Budget: a fold-down bar under a window you already have. A wall-mounted drop-leaf table like the IKEA NORBERG inside, or an outdoor-rated fold-down table like the Leisure Season cedar drop-leaf table outside, gives you a pass-through perch with no new construction. Use outdoor-rated materials and hardware on the exterior side.
- Mid-range: a large sliding window over the counter. A standard gliding window, such as the Andersen 100 Series gliding window, set at counter height with an outdoor ledge, works as a pass-through for much less than a specialty unit.
- Premium: OpenUp pass-through windows - gas-strut and awning pass-through windows designed for kitchen-to-patio bars.
Plan it:
- Match the window's sill to the counter height, and add an outdoor ledge at the same height or bar height.
- Keep the opening clear of the cooktop.
- Ask about weather seals, screens, and security when closed.
- Windows near counters and floors may need safety glass. Confirm with the manufacturer and your local building department.
2. The folding glass wall
A folding door stacks its panels to one side, opening most of a wall to the outdoors. In a small home, it can double the usable living area in good weather.
- Mid-range: a gliding patio door. A wide slider, such as the Andersen 100 Series gliding patio door, opens half the wall for far less than a folding system.
- Upper mid-range: JELD-WEN folding patio doors - stock-size folding doors, sold at The Home Depot, that open most of the wall.
- Premium: LaCantina folding doors - custom-sized folding and sliding glass door systems.
Plan it: a folding wall needs a structural header, a threshold that manages water, and room on one side for the stacked panels. It's a design decision, not a swap, so bring it in early.
3. The window daybed
Build a platform into a wide window and top it with a mattress-depth cushion. It reads as a sofa by day, a guest bed at night, and it gives the best seat in the house to the view.
- A twin mattress fits a platform about 39" deep and 75" long.
- Add drawers underneath for bedding.
- Keep any required escape opening operable and reachable.
- Large windows near beds and floors may need safety glazing.
Extend the room, even without construction
- Budget: a patio set that folds. The IKEA TORPARÖ foldable outdoor table and IKEA's foldable bistro sets store flat when you need the space.
- Outdoor lighting. Weatherproof string lights or path lights make the patio a room after dark.
- Continuous flooring. A similar tone inside and out makes the threshold disappear.
Mistakes to avoid
- Forgetting bugs and weather. Plan screens and seals from the start.
- Opening to an unusable space. A pass-through needs somewhere to set a drink outside.
- Treating big glass as decoration. Safety glazing, egress, and structure all apply.
Our top picks
- Budget: IKEA TORPARÖ foldable outdoor table - a patio table that folds flat.
- Mid-range: Andersen 100 Series gliding patio door - opens half the wall for less.
- Premium: LaCantina folding doors - a whole wall that opens.
Frequently asked questions
What is a pass-through window? A window over the kitchen counter that opens to an outdoor bar or ledge, so food and drinks can be passed outside.
What is a gas-strut window? A window hinged at the top that lifts up and is held open by gas struts, like a car's rear hatch.
Do folding glass doors make a small house feel bigger? Yes. When open, they join the living room and patio into one space.
Can a window seat be a bed? Yes, if it's built to twin-mattress size and meets local rules for egress and glazing.
Make room for your own life.
Planning a new home or ADU? Explore Sightline Homes, or use the free Right-Sized Planner to find where your home could open up.
Keep exploring: How to Host 10 People in 400 Square Feet · How to Make a 400 Sq Ft ADU Feel Twice as Big · The 7 Moves
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Founder of Right Sized Intelligent Living and Sightline Homes. More than 25 years in architecture and real estate development inform her approach to spaces that work harder and feel easier.