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Measured entry

shadcn-block-calendar-02

calendarminimal-flat

A client-side React registry block that renders a bordered, controlled date picker with adjacent months and single-date selection. It ships as a shadcn block wrapping the project Calendar primitive, with React Day Picker, date-fns, Radix Slot, Tailwind-style classes, and the shared cn utility underneath.

Specimen
Harness screenshot of shadcn-block-calendar-02 at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-block-calendar-02 at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-block-calendar-02 at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for shadcn-block-calendar-02
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal50.9 KB (116.3 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usednone

What the harness recorded

BARE BUILD

✗ Build failed in 33.77s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/components/ui/calendar.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A dependable starting point for single-date selection: it builds, mounts, stays within its viewport, and produced no automated accessibility findings in the prepared harness. It does not run bare and needs a shadcn-style setup, while its calendar dependencies add meaningful client weight.

Use it if

  • You need adjacent-month browsing with a controlled single-date value.
  • Your app already follows shadcn registry conventions and has the shared Calendar primitive.
  • You want a compact date-picking block that behaves cleanly across narrow and wide layouts.

Skip it if

  • You need date ranges, time selection, booking availability, or disabled-date rules out of the box.
  • Your project does not use Tailwind-style utilities, path aliases, or a shared cn helper.
  • You are minimizing client dependency weight and only need a native date field.

Install

Installation record for shadcn-block-calendar-02
Declared dependenciesreact-day-picker@latest, date-fns, @radix-ui/react-slot
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add React Day Picker, date-fns, and Radix Slot; copy or recreate the Calendar primitive; provide the cn class-merging utility and matching path alias; and port the expected Tailwind theme tokens and utility classes.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Author repository

github.com/shadcn-ui/ui
License
MIT
Record published
2026-08-14

Alternatives

Other published entries for the calendar pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.