Find a Dealer

Precision Grading in Tight Spaces - why the G73 & G89 Deliver

Working in constrained environments, narrow residential lots, infill urban sites, between structures, around utilities or curbs presents a unique set of challenges for contractors and landscaping professionals. Large machines may struggle to maneuver, accuracy matters, and access is often the limiting factor. That’s exactly the environment the G73 and G89 were engineered for.

The G73: Big Capabilities in a Small Footprint

The G73 is purpose‐built for smaller machines (30–50hp) and tight access jobsites. With its fully retracted width of just 1.15 m (45.5″) when the wings are closed and blade fully articulated, it can access narrow gateways and tight passageways that many larger attachments simply cannot reach.
When expanded for work, it opens to a working width of 1.85 m (73″) via the hydraulic side wings, meaning you have the reach when needed, and compactness when you don’t.

Some of the key features that make the G73 suited to tight spaces:

  • Hydraulic side wings that pivot and deploy, enabling the blade to trim and finish around obstacles.

  • Patented QuadRod linkage plus other innovations like “zero cross coupling” (for the G73) help maintain blade accuracy and response in compact formats.

  • The ability to grade both forwards and in reverse. For confined zones where turning circles are tight, the reverse‐grading capability helps avoid extra repositioning.

  • Built with small‐frame machine compatibility in mind, meaning lighter operating weight, more maneuverability, easier transport and setup.

If your job involves residential pads, tight driveways, between buildings, or narrow lots where full‐size machines bring more hassle than benefit, the G73 brings the high‐precision grading tech of larger machines into the compact arena.

The G89: Stepping Up Reach While Keeping Access

The G89 offers a step up in width and capacity (suitable for roughly 40–60hp machines) while still retaining the agility needed for constrained jobsites. With a full width of 2.26 m (89″) when deployed, it gives a larger coverage area, yet when wings folded and blade fully articulated it can fit through gaps as narrow as 1.54 m (60.6″).

This makes it ideal for jobs where you need somewhat greater machine‐size and productivity than the smallest format, but still cannot accommodate a full‐size grader blade.

Key strengths include:

  • Compact transport and access width combined with expandable working width: get in tight, then open up.

  • Same advanced linkage systems: QuadRod linkage, zero cross coupling, hydraulic side wings, retracting front wheel (in some configurations) – giving you the accuracy and control of bigger machines but in a more agile package.

  • Forward and reverse grading capability to reduce repositioning, improve productivity and minimize surface disturbance.

  • Ready for machine control systems (2D/3D) making it well‐suited to professional grading fleets working in confined zones yet requiring high finish quality.

  • If your work involves subdivisions, urban infill, landscaping behind structures, curbs, foundation pads, or any scenario where machine size is constrained but the finish grade still matters, the G89 offers the best of both worlds.

Why Both Models Are Ideal for Confined Spaces

Across both the G73 and G89 there are several design decisions that make them especially effective in tight job environments:

  • Compact footprint when wings folded or retracted: This means easier access, easier transport, and less jobsite disruption.

  • Expandable working width via side wings: You don’t sacrifice coverage when you step up to full width.

  • Accurate linkages and blade systems: Precision becomes even more critical when you’re working close to finished surfaces, walls, curbs, utilities. Both models carry SharpGrade’s signature QuadGrade linkage tech.

  • Reverse grading capability: When space is constrained, you often cannot swing around for a conventional pass. Grading in reverse reduces repositioning, improves workflow.

  • High‐visibility and operator control: On tight sites you want excellent visibility of the blade, wings, obstacles and finished surfaces. SharpGrade emphasizes good visibility and control in its attachments.

  • Machine size compatibility: Rather than forcing you to bring a large machine (which may be awkward on tight sites), these models are scaled for smaller machines yet with high‐end grading performance.

  • Machine control integration: On jobs where finish grade tolerances matter (e.g., paving, drainage, foundations), being able to integrate 2D/3D systems ensures you’re delivering to specification even in less‐than‐ideal space conditions.

Final Thoughts

For contractors working in constrained or access‐challenged jobsites, the choice of attachment matters. It’s not just about getting the job done, it’s about doing it efficiently, with precision, minimal disruption and maximum productivity. The SharpGrade G73 and G89 deliver that by bringing big‐machine grading technology into compact, agile formats.

Whether you’re navigating narrow access, jobsite obstruction, tight urban build zones, or precision landscape and paving work, these grader blades give you the performance, control and finish quality you need. With the right machine, you don’t have to compromise - you can deliver premium results, even in places where other attachments simply don’t fit.