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Pergola Kits by Dimensions  ▸  20' x 18' Pergolas  ▸  Freestanding 20x18 Pergola Kit with Roof

Freestanding 20x18 Pergola Kit with Roof

Select which roof style of 20x18 pergola kit with roof you'd like...

Slatted Roof
choose from 4 styles

Bracket Size:

Shade Canopies
with mounting brackets

Bracket Size:

Polycarbonate Roof
choose clear, white or bronze

Bracket Size:

Featured Pre-Configured Pergola Kit...

Freestanding 20x18 Pergola Kit with Roof

⬩ Freestanding 4-Block pergola with a 4x4 Frame
⬩ Your Choice of a Slatted Roof (4 Styles), Shade Canopies or No Roof
HALLOWEEN SALE: 20% OFF HALLOWEEN SALE: 20% OFF
Original price $1,249
Original price Starting at $1,249
Original price $1,249
Current price $999
Original price $1,249
Starting at $1,249 $999
Current price $999
Original price $1,249
20% OFF!
Option selected: No roof (frame only)

Specifications

  • Assembled Width Ft: 20
  • Assembled Length Ft: 18
  • Assembled Height Ft: 8
  • amazon bullet 5: Wood (lumber) and specialty hardware for anchoring base brackets to a secure base not included
  • amazon bullet 4: Choose your desired pergola roof style (straight inline, angled inline or traditional) and preferred roof slat spacing (far, medium or close)
  • amazon bullet 3: About our steel brackets: 1) 14-gauge steel (approximately 2mm thick) - 2) Laser-cut, bent and welded - 3) Advanced weather coating technology to withstand extreme weather conditions - 4) Pre-drilled holes for securing wood and accessories to brackets - 5) Backed by a 5-year warranty
  • amazon bullet 2: Freestanding pergola can be any size up to 24 feet x up to 24 feet (and 8-10 feet tall)
  • amazon bullet 1: Pergola kit includes: 9 base brackets, 4 3-arm post brackets, 4 4-arm post brackets and 1 5-arm post bracket (all for 4x4" wood posts) + roof brackets for your choice of roof styles + stainless steel screws (and screw caps) + complimentary drill bits
  • coverage area sqft: 360
  • Required Lumber: As noted above, wood (lumber) is NOT included in this pergola bracket kit (nor is the hardware you'll need to anchor the base brackets).Before you can build your pergola, you'll need to purchase the following items from a local building supply store or lumber yard:- Nine (9) 8' long 4x4 posts- Twelve (12) 10' long 4x4 posts- If you select a roof... Sixteen to fifty-six (16-56) 10' long 2x4 slats *OR* twelve to twenty-eight (12-28) 10' long 4x4 posts - dependent upon your roof selection- Anchoring hardware (36 pieces)The estimated cost for the above lumber and anchoring hardware is $747 - $1457 (depending on the roof you choose) OR $645 if you purchase the frame only (no roof).Together with the cost of this Zen Pergolas bracket kit, the estimated TOTAL ALL-IN COST for your pergola is $2106 - $3800 depending on your roof selection (or $1644 for the frame only). This is only an estimate... actual costs will vary depending on the type of wood you buy, your location, local stores & availability, and various other factors.
  • Text Over Image - Dark: lumber not included
  • Max Roof Brackets Count: 112
  • More Info About Kit: Please note that the images above show a 24' x 24' pergola (not a 20' wide x 18' deep pergola for which this kit is intended). The number of roof rafters/slats will differ from what is pictured above since this kit's roof is only intended to cover the pergola's 18-foot depth (not a 24' depth). That said, the spacing between rafters/slats will be very similar to what is shown in these images. The roof rafters on this pergola will be mounted to the beams on the 18' side and will run the 20-foot width of the pergola (providing more shade when sunlight comes from the 20-foot width side). If you want the roof rafters to run the opposite direction, you'll want this 18x20 pergola kit instead.
  • Required Lumber and Cost: As noted above, wood (lumber) is NOT included in this pergola bracket kit (nor is the hardware you'll need to anchor the base brackets). Before building your pergola, you'll need to purchase the following items from a local building supply store or lumber yard (assuming the pergola will be 8' tall): Nine (9) 8' long 4x4 posts Twelve (12) 10' long 4x4 posts IF you choose a roof style with wood slats : - Sixteen to fifty-six (16-56) 10' long 2x4 slats, or - twelve to twenty-eight (12-28) 10' long 4x4 posts (depending on your roof style selection) Anchoring hardware (36 pieces) The estimated cost for the above lumber and anchoring hardware is $747 - $1457 (depending on which slatted roof option you choose & whether you check the 'Add more roof brackets for more shade' box just below the roof style options ) — OR — approximately $645 if you choose either the No Roof (Frame Only) or Shade Canopies roof style (neither of which has wood roof slats). This is only an estimate; actual costs may vary depending on the type of wood you buy, your location, local stores & availability, and various other factors.
  • Pre Key Info Blocks: 4-Block
  • Pre Key Info Brackets: 4x4 Frame
  • Pre Key Info Roof: Your Choice of a Slatted Roof (4 Styles), Shade Canopies or No Roof
  • Pre Key Info Type: Freestanding
  • Ask AI questions: What makes its steel brackets weatherproof?, How big is the coverage area of this pergola?, What roof style options can I choose?, How many base and post brackets come with the kit?

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