If you don’t already have the mattress you are going to use, you can search the internet for basic dimensions of your mattress. The king size pallet bed mattress is roughly 80″ x 80″. Once you have all the lumber and pallets you need: pallets (4) and base lumber (enough to square the outside perimeter of the pallets and a center support).You can begin laying out the base to get a test fit. After that, test fit and trims where necessary. You can laid everything out and trimmed the base to fit the dimensions of the pallets you used.
And you can walked and bounced a little to make sure there would be no wobble or instability in the whole pallet bed plans framework. Also used some spare lumber to check the height of the frame and mattress. In case you needed to raise or lower the base. The next is begin your layout. After that, dress up the pallets. To soften the edges, decided to go with peel and stick carpeting. To protect the mattress, you can laid an old sheet over the pallets. You can use whatever material suits your desire and needs.
To make sure the mattress would cover over the carpet, measured from the outside edges and cut the carpet pieces. After that, finish the project. Once the wood has been dressed, make the bed. Once the project is complete and the beds made out of pallets are made, if your pet has approved your hard work, your work is completed. Now, the final touches are up to the interior decorator. Hope you find inspiration and improve on this idea.