Garden Master GM3830 Garden Shed

FROM

$1,763.67

(incl GST)

Large, Configurable Steel Storage

The Garden Master GM3830 garden shed delivers generous storage and practical workspace, ideal for mowers, tools, bikes, and outdoor gear. Crafted from high tensile steel sheets and channels, it provides strong, long‑lasting protection while remaining straightforward to assemble with basic tools. With its gable roof and versatile layout options, this shed suits serious home and garden projects.

Key Specifications

  • Overall Dimensions: Width 3770mm, Depth 3030mm
  • Wall Height: 1830mm
  • Gable Height: 2090mm
  • Floor Area: 11.42m²
  • Door Opening: 750mm
Specification
Sheet
Dimensions
Diagram
Gubba Garden Sheds

GM3830 Garden Shed

Specification sheet
STEEL GARDEN SHED
SKU NOGM3830
01

Room for your next project.

A generous footprint. Everyday storage. Made here in New Zealand.

Garden Master GM3830 with gable roof and single hinged door
Standard configuration · illustrative view
GARDEN MASTER · STANDARD SERIES

GM3830
Garden Shed

Steel storage for tools, bikes, the mower and your garden essentials.

11.42 m²

Base footprint area
Gable roof
Single hinged door

Width
3770 mm
Depth
3030 mm
Wall height
1830 mm
Peak height
2090 mm

02

A closer look at the dimensions

All measurements in millimetres. Standard configuration shown.

Depth 3030 mm Peak 2090 mm Wall 1830 mm
Gable-end elevation · schematic
Base width
3770 mm

Base depth
3030 mm

Wall height
1830 mm

Gable / peak height
2090 mm

Base footprint area
11.42 m²

Base dimensions are not a roof-overhang measurement. Check the installation
instructions when planning clearances.

View original dimension diagram ↗

03

Steel, with layers of protection

Hi-tensile anti-rust steel cladding.

Illustration of protective coating layers above a corrugated steel sheet
Coating illustration · not to scale
Cladding thickness
0.3 mm

Material
Hi-tensile anti-rust steel

Premium paint coating
25 micron

Primer
5 micron

04

Find your colour

A finish to feel at home in your garden.



  • Grey Friars


  • Ebony


  • Karaka


  • Desertsand


  • Gull Grey


  • Sandstone Grey


  • Flax


  • Titania


  • Slate Grey


  • Ironsand


  • AZ Plain

On-screen colours are approximate. Refer to physical samples and the product’s
available options before choosing. These swatches do not change your order.

05

Easy access, every day

The standard GM3830 door configuration.

750 mm opening Single hinged door
Door detail · schematic, not to scale
Door type
Single hinged

Clear opening width
750 mm

Other door configurations are available in the product options. This sheet
describes the standard single hinged door.

06

Plan a solid foundation

Recessed concrete base dimensions from the original specification sheet.

3720 × 2980 mm Internal measurement 3770 × 3030 mm base footprint
Plan view · recess exaggerated for clarity
Base footprint
3770 × 3030 mm

Internal measurement
3720 × 2980 mm

Outside recess
25 mm around the outside

Before pouring concrete, confirm the base detail against the current
manufacturer’s installation instructions. This diagram is a dimensional guide.

07

Flat-packed, ready to transport

Check the pack dimensions against your vehicle or trailer.

Master pack
2100 × 850 × 100 mm

Channel pack
3770 × 300 × 100 mm

Floor pack
3770 × 300 × 300 mm

Floor pack applies when a floor is ordered. Dimensions are length × width × height.

08

Get set for assembly

Have these tools and a helping hand ready.

  • Battery or electric drill
  • 3.3 mm (1/8 inch) drill bit
  • Riveter
  • Tape measure
  • Ladder
  • Non-slip gloves
  • Good shoes
  • Goggles
  • A set of helping hands
09

Made here. Made for the garden.

Garden Master sheds are New Zealand made.

50 year

Manufacturer warranty

NZ made

Made in New Zealand

50-year warranty as stated on the source specification sheet. Manufacturer terms,
conditions and exclusions apply.

Garden Master Standard Series

© Gubba Products Ltd · GM3830
Standard configuration. Colours and options may vary.

GM3830 · 3770 × 3030 mm

Gubba Garden Sheds

Product Preview

⏱️ Current manufacturing timeframe: Expect dispatch in around 15 working days.

Shed Base
* Reference only, colours and variations may vary.

Brand features

0.3mm high tensile sheet steel offers stronger protection than many competitors, with three coatings on both sides for maximum corrosion resistance.
A wide range of sheds, including narrow sheds, small garden sheds, medium storage sheds, and large utility sheds, suitable for any outdoor space and storage need.
The optional timber floor kit provides an easy, cost-effective base for your shed, making it simple to build.
Erecting your shed couldn't be easier! With some basic tools and a pair of helping hands, you'll have a shed up in no time.
Choose from a broad selection of popular colours to create the perfect colour scheme and style for your outdoor space.
Backed by a 50-year warranty, giving you long-lasting confidence in the quality, durability, and performance for decades to come.

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