Top 8 Exlarge Mailboxes for Outside – Post-Mount Mailboxes

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Architectural Mailboxes 6200B-10 Oasis Classic Locking Post Mount Parcel Mailbox with High Security Reinforced Lock,Black,18.00 x 15.00 x 11.50 inches

ARCHITECTURAL MAILBOXES #ad - Postmaster general approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers.

Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials. 18-inch d x 14-inch h x 11. 5-inch w, 23-pound - use adapter Plate 7530-10 for 4x4 wood post installation. Suitable for installation into a pilaster or column - the entire outer shroud is one piece to resist moisture and the elements. Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life.
ManufacturerArchitectural Mailboxes #ad
Height14 Inches
Length18 Inches
Weight5.91 Pounds
Width11.5 Inches
Part Number6200B-10
Warranty1 year manufacturer limited warranty



Black, XL, Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox

ARCHITECTURAL MAILBOXES #ad - Sleek magnetic door closure provides reliability all while keeping door firmly closed. Predrilled 4 in. X 12 in. X 5. 5 in. And still has room for additional mail and parcels. Mailbox measures 18 in. X 14 in. Heavy gauge galvanized steel body equipped with stainless steel door pins then fully powder coated for corrosion resistance. X 10 in. Hole pattern in floor allows for mounting to existing post installation hardware not included. Larger inner compartment can accept a usps priority mail large flat rate box 12 in. X 12 in.
ManufacturerArchitectural Mailboxes #ad
Height11.93 Inches
Length18.35 Inches
Weight14.08 Pounds
Width14.17 Inches
Part Number950020B-10
Warranty1 Year Limited Lifetime Warranty

3. Fulton


Fulton Extra Large Post Mount Mailbox #2 Black

Fulton #ad - 11"w x 12"h x 23-1/2"l Size. Very Traditional. Hot dip Galvanized Steel. Satin Black Finish. Fully assembled.
BrandFulton #ad
ManufacturerFulton Corporation #ad
Weight10.15 Pounds
Part Number2C-BLK

4. Gibraltar Mailboxes


Gibraltar Mailboxes Stanley Extra-Large Capacity Galvanized Steel Black, ST200B00, Post-Mount Mailbox

Gibraltar Mailboxes #ad - Match with any Gibraltar mailbox post with the designation letter code D. Extra large size provides 3, 175 cubic inches of space to receive letters, padded envelopes and multiple boxes simultaneously. Door latch and outgoing mail flag can be adjusted for a tighter grip. Black powder-coated finish provides resistance against outdoor elements. Mounting hardware is not included. Engineered with rust-resistant galvanized steel for extended endurance. Ribbed body enforces extra strength and stability. Mailbox is completely assembled and ready for use.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group #ad
Height15.83 Inches
Length24.69 Inches
Weight11.5 Pounds
Width11.56 Inches
Part NumberST200B00
Warranty7 Year Warranty

5. Gibraltar Mailboxes


Gibraltar Mailboxes Garrison Large Capacity Galvanized Steel Venetian Bronze, Post-Mount Mailbox, GM160VBEC

Gibraltar Mailboxes #ad - Magnetic door catch keeps door closed firmly. Powder-coated finish adds extra protection from elements. Made from rust-resistant galvanized steel. Large capacity accommodates small to medium size parcels. Sides feature embossed lines to assist with aligning address numbers. Mounting hardware sold separately. Pre-drilled holes on sides and bottom for post mounting. Match with any gibraltar Mailboxes post with the designation letter code B.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group, Inc. #ad
Height10.8 Inches
Length23.6 Inches
Weight9 Pounds
Width8.9 Inches
Part NumberGM160VBEC

6. Gibraltar Mailboxes


White, Gibraltar Mailboxes GHP40W01 Grand Haven Decorative Plastic Post

Gibraltar Mailboxes #ad - Space provided for address letters or numbers. Impressive craftsman design and textured finish adds distinction. Compatible with most mailboxes. Heavy-duty, rust-proof plastic construction ensures maximum durability. Some assembly is required. Easily installs over 4×4 wooden post sold separately.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group, inc. #ad
Height41.25 Inches
Length15 Inches
Width6.96 Inches
Part NumberGHP40W01
Warranty90 day limited warranty



Post Mount Mailbox Extra Large Postal Storage Box Gray Galvanized Steel Heavy, mailboxes for Outside, Large Mailbox.

COLIBYOU #ad - Extra-large size offers abundant space for high volumes of mail and large packages. The powder-coated finish helps prevent discoloration from outdoor elements. Engineered from quality galvanized steel for rust-resistance.
ManufacturerNo #ad
Height50 Centimeters
Length100 Centimeters
Weight100 Kilograms
Width100 Centimeters

8. Gibraltar Mailboxes


Textured Black, Gibraltar Mailboxes ADM11B01 Admiral Mailbox

Gibraltar Mailboxes #ad - 60% thicker material than most standard mailboxes. Rust-proof aluminum provides protection from weather and salt. Recommended with aluminum mounting hardware sold separately. Fully assembled with pre-drilled side and bottom mount patterns. Patented door design keeps rain out and maximizes durability. Match with gibraltar Mailboxes posts with the designation letter A. Textured, powder-coated finish keeps like new. Specially reinforced body brace increases strength.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group, Inc. #ad
Height9.5 Inches
Length20.8 Inches
Weight2.6 Pounds
Width6.9 Inches
Part NumberADM11B01