u/Lovegasoline

I have an IKEA double wardrobe with mirrored doors with overall dimensions about 8'(H) x 5'(W) x 2'(D) and very heavy in large part due to the doors).

There are two back panels - one for each wardrobe side - each measuring 28"(W) x 96"(H) x 1/16"(T); each of these panels in turn are comprised of two 14" (W) x 96" (H) x 1/16" (T) panels taped together vertically (in order to fold for packaging). The tape is a very thin lightweight grid tape which has split along its entire length and which I reinforced with a layer of clear packing tape which itself has now de-laminated. Due to the back panels being so thin (1/16"!) they have also buckled.

The wardrobe's frame (sides, top/bottom) is 3/4" thick composite chipboard surfaced on both sides with the same 1/16" white [paper?] laminated hardboard as used for the back panels.

Perhaps down the road I'll replace the back panels with individual 8' x 28' x 1/8" thick white laminated hardboard panels.

But for now I want to make a good durable repair by replacing the split tape seam and if possible removing the buckles from the panel (for example by trimming them to correctly fit the frame - they are a buckling in part due to being a little too tall and racking of the frame telegraphing forces onto the panels).

Any suggestions on a strong durable tape with a high quality 'permanent' adhesive (no duct tape)?

If I decide to apply a quick & dirty horizontal brace(s) on the back what's good to use for that purpose that will be thin but rigid (and not show on the sides and degrade the clean lines)?

Conversely, a step up would be to add a large cross brace or X-brace on the back which will not only help press/flatten the buckled back panels but also help prevent racking, and promote longevity by eliminating significant stress to the frame when moved within the room or when loaded with stuff. Any ideas for a thin material to use for this?

Thanks a bunch for any ideas!

I have an IKEA double wardrobe with mirrored doors with overall dimensions about 8'(H) x 5'(W) x 2'(D) and very heavy in large part due to the doors).

There are two back panels - one for each wardrobe side - each measuring 28"(W) x 96"(H) x 1/16"(T); each of these panels in turn are comprised of two 14" (W) x 96" (H) x 1/16" (T) panels taped together vertically (in order to fold for packaging). The tape is a very thin lightweight grid tape which has split along its entire length and which I reinforced with a layer of clear packing tape which itself has now de-laminated. Due to the back panels being so thin (1/16"!) they have also buckled likely due in part to the wardrobe's racking due to be used on a floor that isn't flat and/or having been moved and relocated which stressed the alignment.

The wardrobe's frame (sides, top/bottom) are a 3/4" thick composite chipboard surfaced on both sides with what appears to be the same 1/16" white [paper?] laminated hardboard as used for the back panels.

It is occasionally moved within the room when changing the room layout (a moving blanket placed underneath it and slid).

Perhaps down the road I'll replace the back panels with individual 8' x 28' x 1/8" thick white laminated hardboard panels.

But for now I want to make a good durable repair by replacing the split tape seam and if possible removing the buckles from the panel (for example by trimming them to correctly fit the frame - they are a buckling in part due to being a little too tall and racking of the frame telegraphing forces onto the panels).

Any suggestions on a strong durable tape with a high quality 'permanent' adhesive (no duct tape)?

If I decide to apply a quick & dirty horizontal brace(s) on the back what's good to use for that purpose that will be thin but rigid (and not show on the sides and degrade the clean lines)?

Conversely, a step up would be to add a large cross brace or X-brace on the back which will not only help press/flatten the buckled back panels but also help prevent racking, and promote longevity by eliminating significant stress to the frame when moved within the room or when loaded with stuff. Any ideas for a thin material to use for this?

Thanks a bunch for any ideas!