Lewmar Hatches - Ocean Range with Flange Base

Lewmar Hatches - Ocean Range with Flange Base

$656.10 $729.00
(You save $72.90)
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The Ocean hatch range are a traditional styled deck hatch with a heavy duty aluminium frame; available with or without internal flange. Manufactured to exacting standards, the Ocean hatch range has been fitted to thousands of boats worldwide.

This hatch features a "Flange Base" - the hatch flange sits inside the cutout.

Designed to provide offshore cruisers and yachts the ultimate in durability, strength, safety and protection. The Ocean hatch has been engineered with deeper frame sections for greater strength and utilises thick acrylic for durability.


  • Outside handles
  • Ability to lock the hatch fully closed or in the vented position
  • Friction levers hold the lid open in any position up to 95°
  • Anodised aluminium frame for corrosion resistance
  • Available with flat base or internal flange
  • CE approved for Area 2A


  • A trim kit is required to fit a bug/insect screen. Also, if the trim kit is being fitted, the required cut-out dimensions increase slightly.
  • Not all sizes are kept in stock. Please contact us to check leadtimes.

Lewmar Hatch Dimensions

Part NumberShapeSizeAcrylic ThicknessNo. of HandlesExternal Handles?Flange Dimensions (L x W)Flange Radius (R)Cut-Out Dimensions (L1 x W1)Cut-Out Radius (R1)Height (Z)Trim Kit & Bug Screen Options (Sold separately)
LEW-170115 Square 10 10mm One Yes 324mm x 324mm 75mm 260mm x 260mm 42.5mm 39.5mm White or Ivory
LEW-170117 Rectangle 20 10mm One Yes 266mm x 411mm 69mm 202mm x 347mm 36.5mm 39.5mm White or Ivory
LEW-170119 Rectangle 30 10mm Two Yes 391mm x 521mm 75mm 327mm x 457mm 42.5mm 39.5mm White or Ivory
LEW-170121 Square 40 10mm Two Yes 485mm x 485mm 75mm 421mm x 421mm 42.5mm 39.5mm White or Ivory
LEW-170123 Square 44 12mm Two Yes 509mm x 509mm 76mm 442mm x 442mm 42.5mm 43mm White or Ivory
LEW-170133 Rectangle 50 12mm Two Yes 444mm x 574mm 76mm 377mm x 507mm 42.5mm 43mm White or Ivory
LEW-170135 Square 60 12mm Two Yes 574mm x 574mm 76mm 507mm x 507mm 42.5mm 43mm White or Ivory
LEW-170137 Square 70 12mm Two Yes 694mm x 694mm 76mm 627mm x 627mm 42.5mm 43mm White or Ivory

More About LEWMAR Hatches & Portlights

Manufactured in England, the quality range of Lewmar® hatches and portlights offer a huge variety of sizes and styles perfectly suited to both OEM users and the retail replacement market.

The Lewmar® range features industry leading construction and are manufactured from silver anodised extruded aluminium fitted with quality acrylic lenses ranging in thickness from 8mm to 12mm.