Keep weight off the soft area

Move people and heavy equipment away from the questionable floor. From a sound location, look for sagging, loose panel edges, dark wet material and a ramp that slopes toward the doorway. Do not bounce on the patch to see how bad it is. If the shed contains a mower or other heavy item, plan its removal without loading the damaged area further.

A durable floor repair follows the water

  1. Unload safely

    Keep heavy loads off the weakened zone.

  2. Trace entry

    Check roof, jamb, threshold, ramp and ground.

  3. Repair below

    Assess the panel and every support it bears on.

  4. Verify after rain

    Check the repaired area before assuming it stays dry.

Follow water through the threshold

Inspect after rain, when the route is easiest to see. Water may run over the threshold, enter beside the jamb, arrive from the roof or rise from wet ground beneath. A wet tyre mark is different from a persistent tide line along the wall. Check whether the threshold sheds water outward and whether leaves or soil have bridged the intended separation from the ground.

If the door is also out of alignment, The Shed Door Sticks After Winter helps establish whether the whole shed has moved.

Open only what the repair can support

The repair scope should include the panel, its edges, joists or runners and the bearing below. Arrange temporary support before cutting a floor that may be holding part of the wall or stored load. Replacement material must match the intended exposure and support spacing. Fix the entry route before closing the repair, then inspect through another rain. A dry new top face on installation day tells you little about the next storm.

Keter Canada distinguishes condensation, leaks and ground-related moisture; the visible wet floor should be traced to its source. Keter Canada: moisture in sheds.

Before you finish

  • Avoid testing softness by jumping or probing aggressively.
  • Include concealed supports in the repair scope.
  • Check again after real rain.