Whimsical Castle Playset Plan

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You know that warm fuzzy feeling after watching a classic fairy tale film?  It's kinda like that.  Bring a child's dreams to life with this detailed and highly characteristic castle playhouse.  Featuring many fun details and ways in and out will keep any kid engaged and stimulated for hours on end.  Practically straight out of a beloved folk tale, the 16x16 Whimsical Castle Playset is guaranteed to be a beloved fortress to any backyard.

If you wanted something a smaller, check out the King Author's Castle design, or if you just want the best we have to offer, you absolutely want the King's Palace.  Either way, you'll be building something peachy for a special someone.



  • 295ft² in total usable play space
  • Two stories
  • Hexagon in shape
  • Bottom hinged draw door
  • 2nd level contains a roofed tower and battlements
  • Room for a slide
  • 13 window openings | 2 trap doors | 2 large entrances
  • Instructions for a rock wall & swing-set
  • Designed for ages 3-10
  • 88 page, step by step PDF plan

Plan Category:

🏰 Castle Playset Plans


  • 14' Wide
  • 14' Deep
  • 16.5' Tall

Framing Details:

  • 1st story Joists: 2x6 - 16" O.C.
  • 2nd story Joists: 2x8 - 16" O.C.
  • Walls: 2x4 - 16" O.C.
  • Rafters: 2x6 - 16" O.C.

Roofing Details:

  • 45° hip roof pitch
  • Typically, 10% should be added to the roofing material order to account for waste and overlap.

Lumber List (no swing-set:

Make sure to ask about and take advantage of any volume discount from your local lumber yard!

(8) 5/4” x 6” x 8'
(17)  5/4" x 6" x 10'
(18)  5/4" x 6" x 12'
(19)  5/4" x 6" x 16'


(75)  2” x 4” x 8'
(54)  2” x 4” x 10'
(7)  2” x 4” x 12'

(21) 2” x 6” x 8'
(6) 2” x 6” x 10'
(7) 2” x 6” x 12'

(4) 2” x 8” x 8'
(6) 2” x 8” x 10'
(9) 2” x 8” x 12'

(4) 1” x 4” x 8'
(1) 1” x 4” x 10'
(11) 1” x 4” x 12'

(28) 4' x 8' x ½” Plywood Non-PT

Hardware List:

  • (15 lbs) GRK 3” R4 Screws
  • (20 lbs) GRK 2.5” R4 Screws
  • (Optional) GRK 4” RSS Screws
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Customer Reviews

Based on 3 reviews
Michael Palumbo
Plans were easy to read and my kids love it

Paul’s playhouse plans are really easy to follow. It’s was a fun family project! I look forward to doing another project soon.

Ramsay Zaki
Perfect for Novices and Pros!

When my wife said "Can you build a castle for the kids" and showed me a really elaborate (and expensive) pre-built one, I decided to take on the challenge. I knew I could build something myself which looked better and was much cheaper. I am generally handy but have never done anything like this before. After looking around, we really loved Paul's designs and purchased this plan. He makes it really easy for a construction novice like me. We needed it to be a little smaller than the plans called for so we scaled it down but everything still worked perfectly per the plan. His plans are also put together in such a way that it was quite easy for us to take liberties and make tweaks to the design to fit our own vision while still using the "bones" of Paul's structure.

Brian Miles

Great plans. Easy to follow. We made a few alterations to the plans but for the most part it is 90% of what the plan was. It turned out great and my girls love it. I recommend buying a plan from Paul if you want a cool play set in your backyard and you are able to build or find someone to build it.