How Much Shade Does a Pergola Give? Rafters, Louvers and Canopies
Resource guide | 7 min read

How Much Shade Does a Pergola Give? Rafters, Louvers and Canopies

How rafter spacing, angle, louvers and fabric canopies change the shade and the heat under a pergola.

Open rafters

Open rafters filter sun and make dappled shade. Closer spacing blocks more sun. Wider spacing lets in more light.

Rafter depth and direction matter too.

Angle of the sun

In summer the sun is high, and in the afternoon it comes in low from the west. Rafters running north to south help block afternoon sun.

Our shade tool lets you test layouts.

Louvered roofs

Adjustable louvers open for light and close for shade or rain. They offer the most control.

They cost more and need power.

Fabric canopies and sails

Canopies and shade cloth give dense shade quickly. Choose breathable fabric for heat and waterproof fabric for rain.

Remove or retract in wind.

Solid roofs

A solid roof gives the most shade and rain cover. It can trap heat and darken rooms, so fans and skylights help.

Check permits and structure.

Plants and trees

Vines and nearby trees add natural cooling shade. Plan supports and care.

Pair with a fan for the hottest days.

Our advice in one sentence

Match the cover to your need: open rafters for dappled light, louvers for control and a roof for rain.

Questions

Quick answers.

Do open pergolas block rain?

No. Open rafters let water through. A roof or canopy is needed for rain cover.

Which direction should the rafters run?

It depends on the site. Our tool helps, and we study your yard.

How much cooler is it in the shade?

Shade can feel noticeably cooler, especially with a fan.

Free estimate

Ready to start your pergola project?

Call us and we will walk the yard and give you a clear plan, drawings and a written scope.

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